<human>: Long story short, I'm a 28 yr. old runner, a rock climber, I pretend I can dance doing zumba sometimes, a walker, and I am very selective about what I eat, because if I eat crap, I feel like crap, and I can't be as active because of things like side aches, etc. 

I met a 22 yr. old guy a few months ago who was on the bigger side, but otherwise attractive, very sweet, loves to cuddle, and helps out with my daughter, without me asking him to. I don't know if I should have just kept my mouth shut because it's really hard to find those qualities in a guy. Before I was a mom, I always dated guys who were very clean cut, athletic, and didn't question me about eating healthy. We've been in a relationship for 2 months.

I blew up at boyfriend last night. He's away, so I sent him a long message about how I want him to be healthy with me and make better choices. I told him it bothers me that he eats enough for 2, sometimes 3 people at a meal, that it's embarrassing when someone finishes and he always asks them if "they're going to finish that." I told him I've gained a few pounds since I've been with him, and haven't felt as motivated to work out. I said I didn't want to see him go up from nearly 300 lbs (he's 6'5 and more stocky, but a little chubby) to 400 or 500 lbs. I said it scared me because I've seen guys his age have heart attacks at his weight. He already has high blood pressure. I asked him to eat healthy and exercise with me, because I wanted to see our relationship keep going. 

He sent a message back this morning saying: "I don't know what to say." I really don't know what to say from here.

Condense the text into a few key points
<bot>: Had conversation with overweight boyfriend about how I want him to be healthier, he tells me he doesn't know what to say.