Should I feel bad I depledged this sorority?

[Pandora]

I've already dropped and started the process of depledging, and some of the girls were pretty disapointed. But honetly, there was never anything going on, some of the members were passive-agressive and catty, and they stalked my facebook and twitter onitoring what I could and couldn't say. I just don't feel comforitable paying that much money because I was unhappy. I didn't want to hurt anyone's feelings so I said it was because I was transfering (which I am, and it has a pretty big influence on my decison as well). But should I feel bad? I thought you were free to leave.
*monitoring
A part of me did know, but I really wanted to give them an honest chance. I learned more about myself though and that I don't need to be a part of a group of shallow girls to feel better about myself. That's worth something, I suppose.