He replied to my messages last night (13 hours later) without apologizing. I haven't opened his message yet (just checked the notification of his message).
Should I make him wait for my reply so that he realizes that it hurts me when he does that (and he doesn't always apologize for doing that, only once in a while)? Like, should I wait until tomorrow at the middle of the day?
by the way my friend and I have known each other for like 6 months, but we've a lot in common and we usually had a lot of fun talking together. And we've done activies together online.