My boyfriend says he HATES summer because it is so warm and wants it to be winter and below 30 degrees all year around. He is mopey and only wants to stay inside and be inactive. I am completely the opposite, winter makes me constantly cold and depressed and inactive. We don't live anywhere with extremely high summer temperatures either. Yesterday was the first day it even reached 80 degrees.
I know firsthand that weight loss can affect how outside temperatures affect you. I used to walk around in the winter with jeans and a hoodie and be fine. Now, after losing weight, I need layers and layers in the winter and still get chills.
But I've never hated summer (apart from the self-esteem aspect) so I don't know if this is something that will ever change with him. He is about 100lbs overweight (based on BMI). I love him with all my heart no matter how much he weighs, so I don't know if I should talk to him about it or not. I don't want to come across as shallow or trying to change him, but I want to spend the rest of my life with him, but if he's miserable in the summer and I'm miserable in the winter, it just seems like that might lead to a dead-end.
Do I bring this up with him or just keep my mouth shut? I know he wants to shed a few pounds anyway, so maybe I should let it be for now. If I should bring it up, how do I go about it without making him think I want to change him?

