How to ask him to stop flirting with other people

Most guys on dating apps assume they can keep swiping until someone says otherwise. It's the default mode. He's probably not doing it to hurt you or disrespect you. He might think you're cool with it because nobody's said they're not. This matters because it changes how you approach him. You're not correcting bad behavior, you're setting a boundary you haven't set yet. Read his flirting as information about where his head is, not proof he doesn't like you. If he's still active on the app after several dates or a few weeks of talking, he's still keeping doors open. That's worth addressing, but it doesn't mean he's a bad guy.

Don't ask him to stop flirting with other people on the app. Ask him to be exclusive with you. The difference matters. Asking him to stay on the app but ignore matches sounds controlling and vague. He won't know what counts as flirting too much. Asking him to delete the app or commit to you is clean and simple. He either wants that or he doesn't. Your job is to state what you want without apologizing for it, and without framing it as a test. Say it like you've already thought it through, not like you're hoping he'll talk you out of it. Make it easy for him to say yes or no without feeling ambushed.

Text it during the day when he's likely to see it and think about it properly, not late at night. Give him at least 24 hours to respond. If he doesn't reply within 48 hours, you have your answer. Silence is a choice. Don't send follow-ups asking if he got the message or trying to soften what you said. That turns it into a negotiation instead of a boundary. If he responds with anything less than a yes, move on. If he says he needs time or isn't ready, that's him telling you he's not ready to give you what you want. You don't need to give him time to think about it.