What do I do if someone comes up to me and slaps my ass yet I kind of like him... I felt wrong and quite violated because he also grabbed it... I know he was kidding but it still felt...wrong. I walked away but that's it, I felt like I should've slapped him. Idk. I'm probably over thinking it.
You tell him its not okay, dont let shit like that slide because he will think you are easy... Just give him the "Its not fucking funny" look if you dont wanna say anything