Right so he asked you out when he already had a girlfriend
He didn't tell you about his girlfriend until the last minute
He used you for sex
He made out you were being unreasonable when you asked to see him again and did some emotional 'crazymaking' with you.
He lied to you about being with his gf
Remind me what you see in him again?
If you want something to read that might help you spot someone who is manipulative then read the Manipulator files at Heartless bitches.com
Heartless Bitches International - "Deal with it!" Rants