<human>: Can you condense the text into three sentences or less?

(SHIT, I forgot to indicate my girlfriend's gender as F. Sorry.)

I'm sure you guys get this sort of question all the time, but I thought it wouldn't hurt to ask. I've been dating this girl for six years straight! It doesn't feel that long because I love her and she's been great through and through. We connect pretty well on an emotional, intellectual and physical level.

In the past year or so, however, the same thing that happens to everyone in their mid-twenties started; her metabolism went kaput. Mine too, don't get me wrong, and it shows a bit, but my appetite has damn near vanished thanks to my current medication (for depression) and I've been watching my intake and have been keep my weight pretty steady, hovering around 190 (I'm like 6'3"). I still need to get more exercise in though.

My girlfriend though has been gaining weight steadily and does not really show signs of stopping. She's still physically attractive to me for the most part, for the time being, but it's been been more and more difficult ignoring how different she is from just 3 years ago. I know it's shallow, but I have trouble reconciling my emotional attraction with my physical attraction. I mean, I can't help that I don't find overweight-ness attractive.

I'm silent for the most part because I'm not anxious to hurt her feelings and make her feel awful about herself. Eventually though, I fear that my physical attraction to her will simply dissipate once it gets to a certain point. She still finds me  physically attractive despite my frankly average physique so that compounds on my guilt. She's also less shallow than me, I think.

I'm not sure how I'm supposed to feel, or how I can avert a potential evaporation of my physical attraction to her. Am I in the wrong here? If not, what should I do? Should I talk to her about it? How would I talk to her about this? How can I make things better?
<bot>: My girlfriend's been gaining weight steadily and I'm worried that I won't be able to just look past it for much longer and lose my physical attraction to her.