Sibling issues
If it works out where something happens to you and they do help each other, and are there for each other then that's fantastic and I would be very happy about it for you and them too.
A lot of people's lives are not like that though, and a lot of people would stay in a crappy abusive situation only because of family.
I think Valiant63 should pack up his **** and go somewhere he want's to be, and let the people making his life suck fend for themselves.