Spousal Support?
my hubby and I have been together for 10 years. married for nearly 8. We met online while playing a video game. We have always had a sedentary lifestyle, and he is overweight and considering weight loss surgery now.
He was always more active than I was, the difference now is that I have the ability to keep up with him, and in some cases I can outdo him. But I'm still pretty laid back socially. We do more, but it's not so much that I'm leaving him in the dust.
I will point out that we have a toddler, so most of our social life is centered around kid stuff anyway.
I don't think that your interests will really change just because you lose weight, they didn't for me. Well, other than I want to buy ALL the cute clothes now. lol.