What should I do?

I also have another question on my mind,me and my now ex who I was going out with for a year last year told me about 3 months ago that he still really liked me and seen as though we were at a party and were both drunk we ended up havin sex,and now he wont even talk to me which is really upsetting as we were really close! and when I text him saying why are you being like this he simply said that was good bye sex one for the road you know! but I dont know! I really thought we were going to get back together and now that I've been seeing this new guy who I was telling you about (the one thats flirty with other chicks but still comes to me at the end of the night) hes all like baby I want you back again and I honestly dont know what to do? or who to go for?

honestly...wait till what happens on friday...a guy that has sex with you and then stops talkin to you, if I was u, I would feel used just for sex...

thanks! I actually was out with a few girlfriends today and I saw him and he said hello it was weird! but maybe its because my friend nikki with out telling me told me todat that recentley she was talking to him and she told him that he was being a total jerk ignoring me and that I was really upset and now hes being okay with me?