A guy at my school messages me maybe once every 1-2 weeks and we play truth or dare, it’s gets kinda sexual with the questions because it’s more entertaining but we don’t go that far, we don’t send pics or anything. I like him but I know he’s a douche because he’s pretty much cheating on his girlfriend with me. I need someone to smack some sense into me but I always just continue on the conversations because they’re enjoyable even though I know I shouldn’t 😫😫 what do I do??

Edit: he messages me over Instagram and he always starts the convo by sending me something I posted and saying something funny about it