Would I seem needy if I did this?

So I've been dating this girl for 6 weeks and we have only hung out/went on dates 3 times! We, but mostly she was either too busy or flaked on me last minute, although they were almost always for good reasons. She's told me that she always wants to spend time with me, but that was about 3 weeks ago and I am kind of afraid she is losing her feelings for me. This weekend she is gone to her cottage with her family. We hung out as a group of friends last night (7 of us) and she didn't really pay any extra attention to me. I asked her the other day of Facebook message and she said "Yes indeed". Should I be worried. Would it seem needy if I just really confronted her and told her I'm getting mad because she isn't making enough time for me?