<human>: Summarize the given text in a few sentences.

I [23M] have a girlfriend [22F] of two years.  We met a couple years ago, got together fairly quickly, and things have been awesome since that time.  No major issues, we seem to agree on most things, and I feel like the future is bright.

We both went to the same university, where I played on the football team.  It was a pretty good school for football, and I thought that I had a chance at the NFL, so I really embraced it.  The coach wanted me to be an offensive lineman, so I started killing myself in the weightroom and eating like a horse once I got in.  Over the course of my time in school, I got enormously strong and muscular, but also pretty fat (since linemen have to take blows on the field).  I'm 310 now (at a height of 6'2").

As you can guess, the NFL didn't happen, and my girlfriend and I both just graduated from college, and we're looking for regular jobs.  In the meantime, I decided to try to lose some of this weight, since there's really no reason to be this big anymore, but my girlfriend is resisting it.  She isn't really saying this, but I can only guess that she likes the fact that I'm so big.  The sex has actually gotten a little more...energetic on her part, let's say, as I've gotten bigger over the past two years.  I think that she might find me less attractive if I lose weight...and that would suck, because things have been so great until now. :-/

I would like to lose some of this weight, but I love my girlfriend too, and I am afraid of losing her if I lose weight.  It's tough, though, because, while there are things that I like about being really big, there are other things about it that aren't so great.  She is really insistent, though...I wonder if we have a future.
<bot>: my girlfriend wants me to stay a fat offensive lineman even though I'm done with football, and even though I want to lose weight.  Is this a dealbreaker?