I'm 18 , I don't know much about relationships, can someone help me?

Question:

I'm 18 , I don't know much about relationships, can someone help me?

I had a girlfriend and then she broke up with me. Then she hooked up with another guy. Then she would tell my friends about how she had sex with him. She always talks to me about him and sometimes I don't know what to say because I don't want to sound jealous ( and I'm not) but she always brings him up in conversations.

Then I told her I didn't think it would be a good idea if we stayed friends but then she got really angry and said I was trying to punish her (but i wasn't) I just thought it would be better for me if we weren't friends. Then she would send me facebook and myspace invites, so I deleted my email. Then she posted pictures of her kissing someone I couldn't recognize. Last week she emailed me and said her boyfriend moved and she started complaining about irrelavant things. When I sign off of msn she immediatly signs on. I don't know why shes acting like this. I'm always mild mannered with her.

Why is she acting like this

Best Answer - Chosen by Asker: dude some female like that extra attention...because they don't get it from the parents. anyways just avoid her and if anything come out of this smash it if she isn't dirty b/c i'm sure you 2 will end up somewhere and doesnt hurt to have a "buddy" but she just trying to piss you off and test your nerve from the sound of it you already won way to go bud b/c your not letting her phase you. maybe she care about you but your not showing much feeling either and so she want you to show emotion female are hard to please when it come to their emotions...might just want to come out and ask her what the hell does she want from you!!!