So at like the last 30 minutes of the dance, I started dancing with a girl. The dance went very well and after like 10 minutes we started kissing for a long time. When the dance was almost over, her friends came and told her she had to go, so I asked for her number. I'm pretty confident she said "sure" (not absolutely sure though), but then went with her friends to the washroom. I waited about 2 minutes, but she didn't come back out. Is this a normal occurrence? I thought the dancing/making out went pretty damn well too..