[Stargazed.]

I see nothing wrong with dating a "fat guy" it's personality that should hook you in. Of course, if a guy packs on a few pounds & you're worried about his health and your relationship together, it should be brought up. Don't tell him outright that he's "fat" because that hurts. Imagine if he told you you're fat. How would you feel? So, be gentle about it. Offer to work out with him as an activity, encourage him to get fit again.