This is to the poster - Truefaith,
Would you rather date somebody who are themselves, or would you rather date somebody who they are not? Think hard about that question; and also think back on the ways your Mama raised you, I'm sure she raised you better then this. What if your girlfriend wants to make you "more attractive" and wants you to get your haircut a certain way, and, wear certain clothes, and "work out" more, how would that make you feel? That's just giving her reasons to be insecure with her body, and, no girl should be insecure with herself.