" He says if we have more sex it will make him feel more appreciated. He gave me four days to decide if I wanted him to stay or not. I had no other options."
So he tells you that you are miserable-making for EIGHT years? 
He tells you that you can Fuck your way out of it, to make him happy again 
That YOU HAVE NO OTHER OPTION, it's Fuck me or Fuck OFF?

AF, got any tickets going to the FAR SIDE OF FUCK, got another customer here!
Jesus christ, I know I ought not joke about this, but no wonder you were drinking too much! (bloody well done you for stopping too!)
Sweetheart, shagging your way out of trouble is a sticking plaster remedy. This is all about meeting HIS needs, and addressing NONE of yours. Hence your need to self-medicate with booze. You are serving him in some way, but not serving yourself.
He won't show you how much he means he's in this for him only.
You are chasing a ghost. Stop running. If he wants you he'll come and find you. If he doesn't you know where you stand. he's not worth it love,
You need a man to be there for you, support you and you support him. In this together etc etc, not contemptuous little jibes about how miserable you make him.... What's HE doing for you? honestly?
He's made YOU more miserable than you apparently make him, I'll be willing to bet.