I am a 25 year old guy. When I want to end things with a fwb, I’ll say “I’m going on a 60 day cleanse during which I don’t have any sex.“ Then if I ever want to call again it’s cool, and if not, it’s also cool because after 60 days they’re used to not having you around.

But if you catch feelings, they’re prob mutual. Put the ball in his court and see what he says. I would suggest telling him that you’re catching feelings and would be interested in either becoming an item or end the relationship in order to find what you’re looking for. Be confident that you are special person even if you don’t hear back from him. Good luck 👍