So I have a friend he's a guy as you know and he flirts a loooot which i dont mind. I mean he picks me up all the time like literraly carry me lol, we hold hands sometimes when we go out people always think we're a couple. He's friendly and i can talk just about anything with him things that my best friend doesn't even know about. But recently I'm starting to get concerned I mean he bites me a lot fingers, arms wherever he can find skin even neck sometimes. He lies on me all the time he tickles me and i think its inappropriate since he has a girlfriend how do i tell him to back off a little without seeming harsh? Because i don'twant gf drama in my life lol im happy being single
What should I do?