"Dd1 has been very clingy lately - she's always been like that to a degree, but sees more pronounced at the mo.The arguments can't help. Also she must be confused about what's going on. She's aware he's not around much,but he tells her he's at work, doesn't want to say anything about living elsewhere (because he doesn't really accept it himself??)"
Kids know when things aren't right, they're like little barometers. Considering your partner keeps exhibiting his total lack of care for his kids by bullying you into giving him drug money right in front of them, I can't imagine your kids feeling anything other than worried and freaked out by the situation. My parents split when I was 3, I remember many a fight. I remember the tension, the upset.
"He came round to borrow money off me this evening - is OK as he has paid a cheque intomy account."
No it's not. He's been ripping you off, if he's paying you money you should keep it and say it's going towards paying off the debts he's bullied you into getting to pay off his drug habit. It's going towards raising his kids, as he is so addicted to drugs he is abandoning his responsibilities as a father.
"He wanted me to get a loan fromloan shop just for a month,"
Just for a month, yeah, right .
"so he can clear his new fresh debt (he went and took more last night cos I wouldn't let him stay here, so is all my fault of course). I said no.
Good, well done.
"Off he ranted again - is very frustrated with me because i willnot obey now. Keeps going on about pulling together, doing what is best for us - ie I should let hi stay here as that would have prevented him taking drugs, therefore we would both have more money."
Did having him live with you stop him taking drugs before? HE is the only one responsible for stopping taking drugs. Addicts love to play the "You're responsible for me being addicted" card, because personal responsibility is totally alien to them. But you are not able to make him stop, only he is. He'll probably also tell you that you can cure him, or that the right circumstances can cure him. It's all an illusion. He and he alone is responsible for his recovery.
"I said he prob would have taken ore another time, then deanded money back anyway - and how come I must do what is best for him, but he doesn't feel any compulsion to do what is best for me (pay bills, help with parental responsibility, get up in the morning rather than lie in bed all dayleaving me to do everything etc etc). How can he expect me to let him stay here to stop him taking drugs when his behaviour is so unacceptable????"
Good for you!
"He thinks our relationship is v destructive"
Well at least we can all agree on that one.
"and I am mental."
Ha! Drug addict, calling you mental. Ha!
"whereas perhaps i'm deluding myself but finally think i'm regaining my sense of self, and taking back control of my life (just shame left it til that life is such a mess)"
It's good you're standing up to him on some things. Keep up the good work. With practice one day you'll feel strong enough to stop him coming to your house.
"On downside, I feel totally exhausted at the moment, and pretty low, quite tearful sad"
It's really hard standing up to bullies, and it is emotionally exhausting. Look after yourself tonight, take a long bath with a good book or watch a good movie, order in dinner for the kids so you don't have to cook, that sort of thing. Reward yourself for being brave and standing up to him.