Re: My spouse is chronically miserable.
"Don't make your problems, MY problems".
If a complaint isn't vented on someone... is it still a complaint?
There's a good side to being practical. It's necessary to balance out responsibility. Ying and Yang.
Sometimes giving them a real actual reason to be miserable helps.
If he thinks his life sucks now.... Try living all alone for awhile, see if he really think life is all that bad. 15 years is a long time to battle depression. Hard habit to break, I'm sure. it can take a BIG shake up to get through to him.
You don't have to get divorced immediately, but separating for awhile might give you a chance to see the light. Yeah, you do deserve to be happy, and if he is ruining that for you, consider leaving for awhile.