This guy is giving me vibes that he digs me?

ok so we sit next to each other in math and where math Buddy's (where both 13 and in 8th grade) and i gave him my test because i didn't want it and he said ok if im keeping it im ganna melest u and i thought he was joking but at recess he came up to me and like full on groped my and then he did it from behind me to but it was just messing around right? and he alwas wears a chain around his neck and i uncliped it and im wearing it now and i gave him my cancer bracelet to wear and i don't no if he likes me or if hes just one of thoughs dudes that like to mess with emotions