Does this mean anything?

[Coog75]

I've been talking with a girl for a while and we've had 2 dates. Yesterday, she went out with some friends and was drinking and all that. This morning I get and see that some guy tagged her on Facebook in a picture. It was another couple and them. I think it was just a friend of hers, and I know we aren't dating or anything, but I couldn't help but feel a little down by it. Am I reading too much into it?
Thanks for the answers. I was not being a stalker.. I happen to see the picture on my feed and probably would not have seen it otherwise. I know we are not dating and she is free to do as she wants, but I was hoping she was interested in trying to see if we are leading anywhere. I guess I'll just have to take it with a grain of salt and see how our next outing goes.