Guy problems

Maddi
There's a guy in my classes who keeps joking about stuff like being emo and that sort, and he  doesn't know but I actually  was and did some of the things he jokes about doing and it really annoys and kinda offends me. What do I do? 
(Ps: I didn't mention any of the actual words in case it would make someone have to remember something or think about it. But, they have to do with being emo and that stuff)