She then accepts my friend request after 3 weeks, what gives?

Anonymous
So, I message this one girl that I kind of work with. She saw me a couple times but really there were no approach from my part. I sent her a message in the Facebook w a friend request 3 weeks ago. I pretty much stated that I wanted to get to know her. I had given up on her since no respond what so ever. Kind of saw her today, after 3 weeks...again, no approach on my part, since I feel rejected. Then I saw that she accepted my friend request today. What gives?

I mean she could just ignore it completely, but just decided to do that. Can I get any input here?

Thanks for reading.
She then accepts my friend request after 3 weeks, what gives?
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