@JellyDonut babe get the heck out of there. There is nothing, and I mean NOTHING as depressing as spending your life with a tightarse. It's never going to change and will repulse you more and more. I speak from experience.
My final straw was when he had won several thousand one evening gambling (a regular occurrence but he never EVER bought or did anything or treated me with his winnings, just hoarded it like a miser) but couldn't get his shoes on fast enough to get to the pub to get a drink out of a friend who had won £100 on the pub lottery.
I still think of the shock my vagina went into watching him race out of the door to get a free celebratory pint from our lovely friend. What a bellend.
Also the pitying expressions on waitresses faces when I paid (again) because he had "forgotten" his card at dinner