I'll put it bluntly. He's overweight.
He gave up smoking 2.5yrs ago when our ds1 was born. For that, I have nothing but admiration for him. At around the same time, he had an accident at work and consequently had to give up a very physical job involving a lot of manual labour. He now works in an office and doesn't do much, if any, manual!
He has always had a big appetite. The difference now, is that he is not burning off the calories like he did in his previous job. As a result, he's gone up 3 waist sizes in 2 years 
No idea what he actually weighs, but he's 30yrs old and wearing a size 40 waistband. This cannot be good for him?!
Now, I'm no supermodel myself and have struggled with my weight for most of my adult life. When I was pregnant with ds2, I made a decision. Consequently I am now 2 stone lighter and still counting. I had hoped that DH would follow my lead- clearly I was wrong 
Now, the reason I have posted this in relationships... and I hate myself for saying it... I don't find him as attractive as I did when we first met, and its his ever increasing size that's the issue. Its not just on a physical level either. Its the fact that it doesn't matter what I say (I've subtly dropped hints re healthier eating) or do (ie making smaller, more healthy lunches/dinners) to try and help, he doesn't seem to want to hear it and he' always got a way around it. Its like he's on self-destruct. But its becoming a real issue for me. I find myself getting angry (not outwardly- there's no point) at him when he goes to the cupboard for a packet of crisps after he's eaten a HUGE plateful of dinner.
I'm not saying its a deal-breaker for me- I still love him like I did the day we got married. If not more since the DCs have come along, actually. I'm just sick of trying to get through to him, without being brutally honest and running the risk of upsetting him.
Health wise, his internal organs must be suffering?! I feel like saying to him "why not go the whole hog and start smoking again?"
I want my boys to have a dad when they're growing up. That probably sounds stupid but its worrying me. I cant seem to get through to him that he needs to cut back. I'm not asking him to go on a full blown diet, just stop with the beer and crisps in the evening. That would be enough to make a difference I'm sure.
Sorry for the long, rambling post. I just had to get it out.
If you've made it to the end and have any advice, please feel free to offer it up!