Last night I went into the city with a buddy of mine and decided to hit up a local place called Jillian's (its a club/pool hall and bowling ally) We where there for a few hours when I noticed a 2-set that was hanging pretty close to our table, so I decided to go ahead and open. the opener went well and I felt like I grabbed their interest quickly. Within a matter of minutes after I asked if they wanted to join our table I went from playing doubles against them with my friend to engaging one on one with one of the girls off to the side, while my buddy kept the other occupied with the pool game.

I felt like I got a few IOI's throughout the conversation. she hugged me once during the game, then while we were alone she sat very close to me, our sides touching. she touched my arm, I reciprocated. yada yada. she was a huge football fan, and we got on the topic, she was very enthusiastic about the topic as am I so I felt it was easy to keep her interest. everything seemed great and that I was working towards a number close, until out of no where, two of their friends that I didn't even know they were with showed up, and I could tell they wanted to leave. they weren't having much fun. one of the friends told the girl that was talking with my buddy that they wanted to split, so the girl passed the information off to the girl I was talking with. I could tell the two set wasn't really ready to leave, but I think they felt pressured by their friends so they reluctantly started to leave. before my girl took off I told he that we should exchange numbers before she went, so we would continue talking. BUT I got the usual "I have a boyyyyfriendd?" answer, and the way she said it made me sure that she didn't, but said so despite the fact. I wasn't mad, just disappointed. I was sure I did everything right up to that point. but I'm a newbie so probably not.

If any one with moderate to extensive experience could help me dissect this and come up with a reason for my failure I would be grateful.

Thank you

It was a good start. Couple of clues.
She was leading you in the interaction. That's bad. You should instigate the touches, not reciprocate. Be more assertive.

It's also very likely that she did have a boyfriend, which in that case if she is within earshot of her girlfriends she has to say that, otherwise she'll hear it from them later or they could say something. It's usually a good idea to isolate the girl when number closing.

You were probably having a good time and the girl had fun, but that's a far cry from really moving her up the seduction tree. A girl laughing, giving you some hugs, coming around you is just normal guy-girl interaction stuff. She was most likely in control. What you are looking for is a very specific way to interact with a girl that will have her looking at you with bambi eyes.

Maybe share some more details if you want to dissect something specific.

I think she saying that she had a boyfriend might be true in this case and she just wanted some attention and flirt with you.

However when you realised IOI's you should have tried to escalate more and get her isolated and go for the kiss. Or BJ even better