Repost: Facebook wallpost- Why is he being friendly?

I was talking to this guy for a few weeks. (Both 16) We were dating without it being 'official'. Long story short, he tried having sex with me, I said no because I told him before I was a virgin and I'm not losing it until I'm in a serious long term relationship. My friend without my knowledge texted him, calling him out. He texted me 'Okay were done. Sorry I cant give you another chance at it. Some # texted me assuming that I wanted to have sex with you so no sorry.' We haven't talked since then, and I've heard he's hooked up with two other girls with a sketchy reputation. Today he wrote this on my Facebook wall: "how have u been i have reallly talked to u since idk oh yea when bre started talking a bunch of shitt like a immateur little kid. But hows my favorite "6ft" western dance star lol" Western is my school, btw. Translation please? Is he just being friendly or is he trying to get back with me? How should I respond?