To all the people that are getting mad at luke1: when was the last time you approached someone you thought was unattractive? How about someone that you thought looked hideous? In fact, every potential mate you see on the street might have a great personality. So how do you know which one to approach? Lowest common denominator: appearance. You go for the one that looks good.
But he's in a relationship, you say, and he should learn to accept her for who she is or end the relationship. Well, let's say you really like your girlfriend. But she likes letting the trash pile up in her apartment, and as a result, smells really bad. Do you "oh well" and accept her for who she is? No, of course not. You say "TAKE OUT THE FREAKING TRASH, WOMAN, YOU SMELL BAD!" (well, not quite like that.) You ask this of her because you know it's plausible, and that she'll do it if she cares enough about what you think. A relationship should be about compromise. If your girlfriend is unwilling to take out the trash, then she'll say so. And if you're unwilling to continue a relationship if she doesnt, then you end it. But why assume that she's unwilling to be more tidy, and end the relationship, before giving her the chance to compromise. Who knows, maybe she's been thinking of being cleaner.
Anyways, I think I understand where luke1 is coming from. He really likes her, and would continue to go out with her even if she didnt lose weight. But he really would find her more attractive if she did lose some weight. And he also knows that this is a sensitive issue.
Well, luke1, there's 2 ways of going about this. One, you can tell her straight up that you'd like her to lose some weight. Or, you can do it in a more roundabout way. Tell her that you think YOU need to lose weight. From what you've told us, you're in great shape. If she thinks that you think you need to lose weight (and that you're in great shape), then she can deduce what you think about her weight gain. And because you need to go to the gym, you might as well ask her to come along too.
BTW, you say you dont need to hit the gym, but honestly luke1, who's so fit that they dont need to go the gym?
dfi