abusive + controlling boyfriend

This is my story ...
I am 20 and live with my boyfriend who is 32. When we first got together we fell for each other very hard, spending everyday together and such... I moved into his apartment just after 3 months of dating. I am financially dependent on him, meaning that all my expenses (school, clothes, car) are paid by him.

Anyways, I noticed things about him such as jealousy and sensitivity. One example is when i wanted to hangout with my friends he thought i put my friends before him. This eventually lead to multiple cancellations, missing birthdays, etc...
Anyways, things were okay until i started noticing how much he distrusts me... for example he thought i was talking to guys through my girlfriend's facebook. He would call me a "little liar" and other names.

He constantly yells at me when he is angry. I feel as if he is a firecracker just waiting to blow up. He always says our fights are "just because he cares about me", and his yelling all "my fault". One line he often uses is "i don't yell at you for no reason".

One day i tried to leave and packed my clothes in boxes while he was sleeping. He woke up in a fury and dumped all my boxes of clothes and bags out claiming that he had paid for all my clothes (which is true) therefore i had to leave it all there. He even tried to cut one of my bags with a knife! This escalated into the first PHYSICAL abuse, in which he grabbed my neck a couple times when i tried to collect my stuff again. He forbid me to keep any of my stuff, including my cell phone. He even tried to RIP the diamond necklace he bought me off my neck. Anyways, he called the police to get me out of the house, in which i was escorted out by police (how embarassing.)

Later on, as the police were escorting me out he told me to stay and not to leave. However, i could not stay because the police said they would arrest me for disturbing the peace if i reentered. I met up with him later and he apologized for everything, however i was left with several bruises on my knees. No marks on my neck though (thank god)

We talked it out, and managed to work things out ... Until recently i wanted to go to a convention show about sex with my girlfriend. He has been cleaning the house recently for an event, and i know it was very important for the house to be clean. Anyways, i asked him for permission to go (he says the right way to go out is to ask for permission, and same thing as him) and he replied with "you want to take my car to see a sex show??" then after arguing he yelled at me saying "i think of you just as a little slut"

I DONT KNOW WHAT TO DO ... i feel stuck. i just feel like a zombie who is walking on egg shells, waiting for him to blow up on me about anything and everything. i think i love him, or i love what we once were.

needing advice .. thanks

I lived with someone like that, a life lived walking on eggshells, second guessing everything I said in case I 'wound him up' (it was always my fault of course) I feared his mood swings.
Eventually my confidence disappeared, I didn't have much to begin with anyway. Self esteem was non existent. Criticize/ridicule took their toll, I was totally convinced NOBODY else would possibly want me.
I turned into a compliant zombie, he still found fault though.
I left 22 years later and regret every minute wasted on him.
So plot your escape and get out.
I know its difficult especially as he pays for everything. Is there support from family/friends, could you get a part time job perhaps.
Don't waste your time on this person, you deserve better.
Ask yourself why, why are you attracted to him, someone who treats you badly. He is making you unhappy, that is not love.