Charly1110:
I am not sure I will like it. So I need some advice. What is it like to have a fat husband. He is currently pretty skinny.
Having a fat SO isn't that different from having a thin SO. They are your partner first and foremost.
I've also always found it shallow and gross the way people will say things like "I don't like my partner as much now that they no longer look like ___". That's the love of your life, not a Sims character.