I feel bad...

So my boyfriend has this condition called Dermatillomania, which is picking at your skin/scabs all the time. He does it because of stress and just not knowing how to deal with what's wrong in his life cause he was really sheltered as a child, and his mom never let him deal with anything alone, and now as an adult. He can't. And both of his parents sort of mental/verbally abuse him. They call him a retard, Cunt, idiot, pretty well any mean thing they can. 

They even do this to his 14 year old sister. I don't know what to do to help these two. I live with his family due to mine kicking me out, and I so badly want to get out. 

His mom won't let him leave tho, she's that overly protective. I don't understand them. They call there kids all these mean names, but don't let them do anything. 

Please someone help me. I don't even know what to do or think anymore. 

I can't move out due to not having a job, and being injured. 

Sorry this is all over the place.