To keep it short, shes fat(cute face, I like chub), approaching wall(25), doesn't have many friends, bad family, etc. While I'm fit, in school, fairly attractive, have tattoos, mostly alpha and pass most shit tests. Not trying to jerk myself off, but I'm above her in smv however she doesn't act like it.

She's naggy, treats me like im a child(don't forget this, do this,etc.) We have sex a decent amount but when she wants,not when I want. She's comfortable denying it, and when she's on her period no bjs or anal to make up for it. She says I take too long to cum which is why she doesn't like to. Used to do anal a good amount but not anymore. Been with her 6 months. She's comfortable distancing herself or saying there's the door at any slight sign of a disagreement or disappointment on my part towards her, like when she's naggy. Given the smv difference, I figure she should be more grateful that I'm with her and less likely to drop things so quickly, or less likely to be naggy and unpleasant. In my mind she should be trying harder to keep me, and she's not afraid of losing me. I think it's a front for having low self esteem so she acts like she's hot shit, or it's from beta attention in her past. Or it could also be her way of manipulating me into staying with her(hot and cold) or she pressure Flips when I'm pissed at her and I end up having to console her. There's never a point where shes like "im sorry what can I do to make it up to you" or she takes responsibility, or acknowledges that she's just in a bad mood and taking it out on me irrationally. What can I do? I'm familiar with dread, and with exams coming up I don't have time to be spending all this mental energy on her. But when I'm away from her I feel anxiety and its difficult for me to get things done.