Help?

When I was 12, I “dated” this guy and I broke up with him because I wasn’t ready to date. Then I started to like him again. (When he likes girls he picks on them all the time and everything.) But he’s been calling me out and picking on me and getting up in my face lately, and I don’t know if he’s just being flirty like he naturally is, or if he really likes me. Any ideas?