Did I mess up and if so how badly?

Well theirs this girl I know from highschool who has a crush on me.
I ran into at Walmart today after not having seen each other in a year. Well I was with my father because I was going to visit him and my step siblings who live in another state so we were getting some food for the house. Naturally we were in a rush when I ran into my highschool friend and she had tried to hug me but in a rush I didn't notice and just gave her one of those shoulder bumps you give a friend when you hang out. Then as she was walking away and I was getting ready to gun for the soda section my father said I should I get her number. Guess what I didn't do? That's right I just said it was fine and went to the soda section instead of getting her number.

I don't if i messed up or not. I mean I kinda like her but still I just don't think about relationships as much anymore.
Did I mess up and if so how badly?
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