Dating a fat guy?? .

vivid2012

Dating a fat guy? I'm not sure this is a good choice or not. But I love him and I think he is a bright guy.
We've been going out about 9 months now, and he's slowly put on weight. he's not morbidly obese or anything, but the gut , thighs and now the arms are getting kind of big. I miss the days when he's slim enough to wear this.
http://www.dealstudio.com/searchdeals.php?type=id&q=d291602&ru=28908507
It looks handsome, right?
I feel so bad about his figure now. How do I get him to go to the gym or something without outright telling him he's fat?