Why does she criticize me so much?

I really don't understand this behavior from some women that I have been involved with. It seems that some women like to criticize the little things. It doesn't really bother me but I am curious about it. For example I will say I like a band and she will say oh that's really gay or if I do something she will say why do you fail so much? I guess she may just be teasing but I don't understand it. Does it mean that she feels close enough to me that she does this? Kinda like a mom would criticize her child to show them love?