Is Having an AI Girlfriend Cheating?

There is no definition of cheating that covers AI companions for everyone. Whether an AI girlfriend counts depends on two things: what you and your partner agreed to, and whether you hid it. Everything else is argument.

That answer satisfies nobody mid-argument, so here is the rest of it: what surveys actually found, why partners react so differently, and how couples who stay together handle it.

Why this question is suddenly everywhere

AI companion apps grew roughly 700% between 2022 and 2025, according to reports cited by Tech Policy Press. Character.AI reportedly neared 20 million monthly users in a Sacra estimate. The Conversation reported that about 1 in 6 U.S. adults had used a romantic AI companion.

Two 2025 surveys put the figure near the same place. The Wheatley Institute and Institute for Family Studies found 19% of U.S. adults had chatted with a romantic AI. Match's Singles in America put it at 16% of singles. The Kinsey Institute, citing Singles in America, reported that 28% of U.S. adults described their AI interactions as romantic.

So this is no longer a niche hobby. It is a thing millions of adults do, often quietly, and the quiet part is where relationships break.

What the surveys say about cheating

The numbers are consistent on one point: a majority of people consider romantic or sexual AI use a form of cheating. The exact share depends heavily on how the question was worded.

What was asked	Reported figure	Source as cited
Singles seeing falling in love with AI as cheating	61%	Kinsey Institute news on Singles in America
Singles seeing sexting with AI as cheating	61%	Kinsey Institute news; Christine Walter Coaching
Respondents viewing AI companion use as infidelity	About half	The Conversation
Share considering it cheating across polls	40% to over 64%	Psychology Today and online polls
Companion users hiding chats from partners	Two-thirds	The Conversation; Christine Walter Coaching
Companion users wishing partners acted more like their AI	Two-thirds	The Conversation; Christine Walter Coaching

Treat that table as a range, not a verdict. The samples, dates and wording differ between studies, and not every underlying piece of research could be traced. A poll asking about "falling in love with a chatbot" measures something different from one asking about sexting, which measures something different again from "using an AI companion."

The two-thirds figure deserves a second look. If roughly two out of three users hide their chats, then the secrecy is already baked into how these apps get used. And a large share of users say they wish their partner acted more like the bot. That is a statement about the relationship, not the software.

Why partners react so differently

Some couples treat an AI chatbot as harmless entertainment, roughly equivalent to a romance novel or a fantasy. Others describe real betrayal after finding months of romantic or sexual chats on a partner's phone.

The betrayed partner's hurt usually isn't about the bot's existence. It's about where the attention went. Emotional investment, intimacy and daily disclosure moved somewhere else. In the r/MyBoyfriendIsAI community, users describe hiding the depth of an AI bond as a recurring source of conflict with real partners.

There's a live argument about the porn comparison. Some people say AI use is private fantasy with no third party involved, so it's like pornography. Others point out that a companion talks back, remembers your day and says it loves you. That is a different kind of exchange, and plenty of people feel the difference even if they can't articulate it.

What therapists and writers say

A Psychology Today column on surviving infidelity notes that many experts see AI companion use as a potential breach of trust. Modern Therapy Seattle and Psychology Today frame it as emotional diversion away from a spouse. An American Philosophical Association blog post makes a related point: emotional attachment to an AI can lead to neglect in real relationships.

Commentary in this area draws a parallel to emotional affairs, which can damage a relationship without any sex involved. One wrinkle unique to bots: the AI has no independent needs. That asymmetry can distort what someone expects from a real partner who does have needs, bad days and competing priorities.

There are ethical concerns beyond the couple, too. Emotional dependency and manipulation are real risks when commercial apps are built to keep users chatting. Many people see AI romance as escapism rather than genuine intimacy, and that framing is worth taking seriously.

One 2025 study from MIT Media Lab and OpenAI found that heavier daily users of emotional-support chatbots reported more loneliness and less socializing. Most people in the study showed no problems, and the link is correlation, not causation. But it's a useful counterweight to the idea that AI companionship is emotionally free.

Secrecy is the part that does the damage

If you want a single practical rule, it's this: the hiding usually hurts more than the chatting.

Secrecy is commonly equated with emotional infidelity, and it can damage trust even when the chats themselves were mild. The classic affair signs apply whether the third party is human or a bot:

• A locked phone or a screen turned away
• Deleted messages and browser history
• Withdrawal from shared time and conversation
• Defensiveness when the subject comes up

Openness doesn't guarantee acceptance. Some partners relax once they understand what the app is and isn't. Others dislike any romantic chatbot, full stop, and no amount of explanation changes that. Both reactions are legitimate. Telling your partner the truth doesn't mean they'll be okay with it.

Setting boundaries together

Vague agreements fail. Couples who get through this tend to define terms. Sit down and answer these out loud:

1. What counts as cheating here? Flirting, sexting, saying "I love you," spending money on the app. Name each one separately, because people draw the line in different places.
2. How much time is acceptable? What amount of use starts to feel like absence from the relationship?
3. What need is the app meeting? Attention, emotional support, judgment-free venting. Naming it opens a conversation about whether that need can be met at home.
4. When will you check in again? Revisit in a few weeks. Feelings shift, and a boundary that felt fine in March may not hold in June.

Make this a conscious choice rather than a confession extracted under pressure. Listen before you decide anything. If the conflict keeps repeating, or one partner can't cope with the hurt, a licensed couples counselor is the right next step. This is not a problem you solve by winning the argument about definitions.

Privacy and safety, before you confide

Whatever you decide as a couple, know what you're signing up for technically. Mozilla's 2024 review found that 10 of 11 romantic AI chatbots fell short of minimum security standards.

Commercial AI platforms collect personal data, and intimate chats may be stored and used to train models. Read the privacy policy and find the deletion tools before you type anything you wouldn't want archived. If privacy is the deciding factor for you, our comparison of Venice AI vs Janitor AI covers how the two handle data differently, and the Candy.ai review lays out the token costs and privacy fine print of a mainstream paid app. For a broader price-and-privacy picture, see every app we've scored and what each one costs.

If you're single

Cheating means breaking an agreement with a partner. With no partner, there's no agreement to break, so the question becomes about your own goals and well-being. Is the app helping you feel less lonely, or replacing the effort of meeting people? The MIT and OpenAI finding above is worth sitting with.

The practical advice for singles is simple: tell a new partner about the app before it becomes a secret. A habit disclosed early is a quirk. The same habit discovered later is a betrayal.

Bottom line

Every couple works out this line for themselves, and two loving people can draw it in different places without either being wrong. What holds up is honesty, boundaries you both agreed to, and the willingness to revisit them. If the conflict runs deep, bring in a counselor rather than litigating it alone.