It must be hard to be living in a place where someone is draining you like that. But, then, you grew up in a home where that was happening. As an adult, you should have more control, and your home should be your sanctuary. What you were unable to avoid as a child, you can now choose to distance yourself from.

Maybe sharing a house with a not really compatible roommate is not in your best interests. Maybe living alone in a small apartment would actually give you more "space," especially mental/emotional space. This gal you are living with is not going to change. But you can change you, though it takes really focusing on what you are doing that you don't have to do. Also, it takes believing that you can learn to be different. That belief would be enormously empowering. Behavior is learned. It can be replaced by new learning.

Some visits with a therapist could help, but may not be absolutely essential. Learn to disengage. There are specific techniques that busy, efficient people use to extricate themselves from being ensnared in a conversation they want to escape. One is to stop asking follow up questions. Another is to say, "You'll have to excuse me. I've got something I need to go do."

I feel for you because I've had a tendency to let people use me in that same way. I've been changing. Don't think that people who are hogging the conversation don't know that they are doing that. I've noticed that, as soon as I start to withdraw from a conversation-hog, that person will suddenly ask me about me. That's just a ploy to keep me engaged and paying attention to them. It's kind of a control game. I'm learning to be a bit more clever at not allowing others to have that control.

Over the years, I've found that asking conversation-hogs to listen more to me doesn't help very much. As I change my pattern of being overly receptive, these types tend to drift away and out of my life. I've decided that's okay. Keep giving more than you are getting and you will be relentlessly drained. It's worth learning to break that pattern. Your time belongs to you!