<human>: My husband (M62) and I (F47) have been married for nearly 20 years. He's nearly 15 years older than I am, and has always been somewhat of a controlling person in terms of his environment. 

Our arguments mainly are circuitous, always about the same things, always because he feels he does more around the house and isn't appreciated for it. Not to mention, the usual arguments about money (never enough, always spent on things that are all about ME and not about him, etc.).  

I've just gotten to the point where I am sad all of the time, he's obviously unhappy on a constant basis (because he says nothing positive, EVER) and I'm constantly being called every foul name you can think of during shouting matches.  He's one of those people who bring shit up from 10 years ago during an argument, even 20 years ago, and won't stop comparing me to a girlfriend he was with for a little under a year who was his "true love".

We only have sex maybe once or twice a month.  Never anything but fucking, which is fine once in a while, but not as the only way to be together. I can't remember the last time I was held.

I can't afford a divorce. I'm the only one working but the house is in both our names. We only have the one car and a small savings account.  Our son is developmentally disabled (mildly autistic) and lives with us but doesn't contribute financially; he's also very manipulative.

Can you summarize the given text in a few sentences?
<bot>: I just need to learn some more methods of pulling away emotionally while being trapped physically in the same space with someone that hates being with me.  And to stop crying all of the time.