Kerry had such a terrible upringing that its not really surprising she doesn't know how to be a good parent to her own children. After all, we learn from our own parents example and Kerry's mother was next to useless passing her from pillar to post. She had no stability at all. Is it really any wonder she's as screwed up as she is? I don't doubt for one second that she loves her kids but because of her background she doesn't know how to mother them correctly.
Brian is an absolute waste of space though and I would even go as far to say that he is responsible for a lot of Kerry's problems because for all her sins she was madly in love with him and had in marrying him the kind of family life that she'd always craved. When he left her and ran off with another woman he broke her heart and that's when most of her "troubles" began.
He makes me sick. There are people in the world who can't have kids and then you have losers like him who breed and then can't bothered with the kids once they are born and they realise how much hard work they are. To quote Jeremy Kyle "stick something on the end of it!"
It's true Kerry had a dreadful upbringing, but there comes a time in people's lives when they have to grow up, take themselves in hand and stop blaming their rotten childhoods for their awful behaviour. I'm sure there are plenty of people around who've had as bad, or sometimes much, much
worse childhoods than Kerry, but they don't behave like a-holes.