This a question for a man?

I don't know what to think. I think that my boyfriend has been using me. When my boyfriend did not have a job I helped pay for things. I helped put a roof over his head at my parents. I had the full time job. Keep in mind I have 2 kids of my own. We're out on our own and he has a job. But I still feel like I pay for everything. Cause I get my paycheck before him and I feel like I spend it all, everytime. He doesn't drive and has been letting me use his car since mine broke down. I drive him to work every morning go to work and pick him up everyday. I spend a good hour driving everyday just with to work and back. He's upset everytime I pick him up, he always says i'm late. Jumps to conclusions that I'm sleeping around. Or who did I pick up? When I wouldn't even had time. Recently I found out that my childcare is takeing all but 50 from my paycheck to cover what I owe them. I was really upset after I found out. I didnt know what I was going to do. When my mind gets distracted it's hard for me to get it back where it needs to be. I'm upset. I needed a reliever and had a couple hits of some trees. and picked my kids up and went to go pick him up as usual. But didnt think about that I was upset. Kept going on about how its his car. He got to smoke earlier that day with his coworkers. But he accuses me of doing stuff with them. When I've done everything for him. He will constantly put me down about my driving, say that I cant cook and but in and cook the rest of it. Everytime I get on my email he asks me if my boyfriend emailed me. Everytime that another person gets in the car with us. He degrades me in from of them. "what are you stupid?" "you get the dumb *** award." "That **** was ******* retarded." If he isn't serious, he's always joking. I've had cold sores all my life, since I was 5 and he would ask me whos dong im suckin. And all the while he says he loves me. I feel so low everyday knowing that I try my best. I have my blonde moments like everyone does. **** I feel happier at work since they believe that I can do things.