Why is she talking to me now!?

[runner]

Ok me and my ex-girlfriend broke up about 2 mounths ago and havent talked to each other since now one of her freinds started talking to me on fb and i didnt talk talk to her before me and my ex broke up and she is be all freindly and asking me how my days was and stuff like that.I mean we new each other but we didnt talk on a reg basis or at all rely.we would talk a little bit when ivwas hanging out with my ex but nothing rely meaningful. Im just looking for some insight of why she is talking to me now