What does this mean 'this pretty young thing keeps me falling back.'?

Well, I have this guy complimenting on my looks all the time. We're not going out as a couple yet.

I have not had a chance to talk to him for a while. Today he said something like "this pretty young thing keeps me falling back." What does that mean?
Anonymous User
Anonymous User
Asked Nov 03, 2013
he really likes you
Answered Nov 05, 2013

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