Is he playing hard to get? Why'd he start a chat with me and then suggest we do...

[Zan Meanie]

...something then change his mind? He's my Fwb and we haven't spoken in a little over a week, until i was on myspace ( yeah i know). And so i was just on really late and he ims me and is like teasing me to go to sleep. And so i teased him back and told him to, but then he responds by saying something flirty along the lines of "come help me" and then i kinda said he shoulda helped me ( i was stubborn) and so he tells me I should have called him earlier and again, I brought up that he shoulda called me. Regardless, he's like come over, but then i told him I was drunk and he tells me never mind then because he doesn't want me driving and i told him i was fine and if he was still awake, then he tells me that no, he was tried and going to bed. So i teased him so more like yeah right, suree and he just logged off????
What was the deal? Why did he contact me, #1?? and if it was a booty call, why didn't he accept?