I hate dating Momma's Boy..?

My boyfriend had a father who was abusive toward his mother. My boyfriend has openly admitted to having to step in on some of these occassions even as a small child. In some ways, I do understand this as I also grew up around domestic violence however, it seems that after his mother divorced, the relationship between mom and son has become extremely unhealthy in my eyes.

For one, I cannot stand this woman. I think she is manipulative in how she keeps him attached to her, claiming she is 100% dependent on him and also how she will push him toward things that are to her benefit. Much of this has to do with money, something she is always seeking out in the many boyfriends she's had since him and I started dating, but she always finds something wrong with every man. This is also something she has sought out for him as well, hence she always wants to tell me about how Im ONLY going to make X amount of money provided my career path. In this way and many others I feel she is always downgrading me and making me feel I am not good enough for her son. Shes told me so many things I wont even go into detail with, but the fact of the matter is, it is always about her and always in her snobbish tone when it comes to me. I truly believe she thinks I am trying to take her son away. I understand mother and son relationships, but she tries to compete with me when im not even playing the game.

She is in her mid 40's and aside from having no friends, she is well. She claims to have many degrees yet she just started working and even then its a PRN job. He pays for half if not most of everything. I found out when I dont stay over, she will sometimes sleep in his bed because she is lonley. Hes 24 and admittedly so, is in no way shape or form, ready to leave the nest. He said simply, "I cannot leave her". Shes mentioned plans to go elsewhere and I know he will follow. He later tried to talk me into that plan as well, claiming it was his idea. When we talked about having a home of our own one day, he further mentioned her living with us.

I've had a dream to continue my education out of state and at this point its the most logical thing I can do to better myself. Ineveitably, I know we are going to be driven apart by this. He cant be too far from his mom for any lenght of time. The second he is with me, she will call multiple times.

I dont see this pattern changing, I am mentally preparing to run, not walk, in other direction. Do you think I am right for feeling this way? Should I even hold out until we are driven apart, or is it best to do it now? Im sorry but this situation is exhausting. Again, I am not trying to drive a wedge between them, it is his mother, but I thought at this point he'd be excercising some independence and as a 40 some year old woman how is she not? I dont think he will ever get off the apron strings.