GOOD JOB!
Here is the thing. Everyone has their own ethics and morals on doing stuff with girls with boyfriends and things. Anyways, just getting someone's number is not a big deal. You handled the basic boyfriend objection like a pro.
When you see "it's on" and the IOIs and interest is there you have to push it. People can't hide their body language very well. It's something you just can't control until you just have repeated practice at it. Anyways, her body language and actions said she liked you, and you were right.
As far as making that AFC type comment. Don't beat yourself up over it too much. No pickup is without it's flaws. Everyone has some goof ups, or things that don't come out as they should. Practice will take care of that.
KEEP IT UP BRO!
