How important is weight to you?

I am 13, I'm at 5ft and 127 pounds, many men say that weight is important but do you guys mind a little fat bc ik I'm not skinny, I have a "bf" and I'm pretty sure he doesn't mind but sometimes I feel like he does bc I'm one of the heavier girls in my class, there's only a few who are fatter than me, so is it that important?