Thanks (I think) for all your considered replies...
didn't really want to bump this and bring to attention again, but I figured an update would be in order, for those that are genuinely interested, rather than those who just want to troll or flame..
There were 1 or 2 serious replies in there that warranted further discussion - the rest didn't scare me away (it's the internet, it was only to be expected) I've just been busy dealing with this and other stuff.
I won't mention any names, but thanks to those who made sense - and to the rest, I would respectfully say that you totally missed the point - perhaps you should all take your own advice and consider this from someone else's point of view?
First off - I am not cock-centric - far from it, I'll think you would find if you actually knew me - or bothered to ask for more information before judging - shame on you.
Second - my g/f (yes, the love of my life, after 4 months, suck it up - maybe you should be so lucky) has 'trust issues' with authority, due to being let down in the past by 'professiona; services' - so counselling, gp help, etc etc is not an option.
believe me, I wish it were, and it was the first thing I suggested when I became aware of the problems.
Third - I labelled this thread 'problem child' because I/we have a problem with a child - no more, no less - he is a fantastic kid, but we have a problem we need help with. The title and tone were carefully considered to gather attention and responses - in hindsight, maybe both could and should have been worded a little differently. My fault, but I'll just ignore the bullshit.
Fourth - The thought (and it is only that, not a serious consideration) about the child going to live with his abusive father is/was only an option given the alternative - taken into care, social services etc. Those options were only even thought of because the situation was/is completely intolerable. It could not continue the way it was, day in, day out.
Before you judge (or comment) put yourself in the place whereby the ONLY OPTION is to hand your child over to someone else. That is how bad it was.
Fifth - I said it before, I'll say it again - the fact that he heard us having sex IS NOT THE ISSUE - it served as a dramatic example of his behaviour.
My kids coped with much much worse behaviour from their mum - and they are fine. (before you judge again, she is a social worker and has very high moral standards - but things happen. You know nothing about the circumstance, either accept what I say, or don't comment)
I am well aware of his issues, and where they stem from - reread my original post.
My question was - what is the best way to deal with this?
Given that the situation between me and my g/f is NOT going to change - we love each other, will spend the rest of our lives with each other, spending 3 nights a week at her house is NOT out of order (did you consider that the other 4 evenings are spent at my house, with my kids? but she and her kids don't stay over at mine, because I don't have enough room)
We built up to 3 nights a week steadily, we bonded with each others kids sensibly and slowly (my kids love my g/f, and her kids love me - and just as I love my g/f, I love her kids too, just the same way as she loves mine - shame on you to all those who thought otherwise)
After 4 months I am not a replacement father to the kids (yet? I hope to be, to some extent, without displacing their biological father) - I know my place, and realised drom day 1 that what my g/f's kids needed is a stable and loving background (my g/f too, all things considered.)
I fully intend to provide that to my g/f and her kids - that is/was never in question - the question is, given all that, what do I/we do right now to alleviate the situation?
Over the last couple of weeks things have been a lot better - I have shown him that his anger is not responded to, that bad behaviour only hurts him, no one else - but undoing his life patterns of 10 years is hard work, and will take a whole lot more.
I have taught my g/f techniques on how to deal with his tantrums in a sane and sensible manner - it all seems to be working, things are a lot calmer than they used to be, but we still have a long way to go (when I am not there, he will still verbally abuse his mum - at least now its not physical, we've come a long way)
And in case any fundies get on my case - he is not more controlled when I am around out of fear - I have never ever given him any opportunity to fear me, and I never will oppress him in that manner - it's more that he has a certain earned respect for me (he does love me, his actions show that, just as my actions show that I love him) but that he knows he can control his mum.
This attitude - that of a 10 year old boy being able to control his mum (originally because his mum feels guilty about past events obviously) - is the one that needs to change, he needs to relearn respect for his mum, stop thinking of himself as the man of the house (which I am not, btw - I am his mums partner, not his dad) and essentially be a child, not a 10 year old adult.
The means to do this I/we have learned elsewhere - and will be applied in the context of a loving, caring relationship.
It's working so far - brilliantly - and it's only been a couple of weeks.
So.
Apart from 1 or 2 decent posts in this thread you are all scary people I would not let near my kids, let alone listen to over an anonymous forum.
If you still don't get it, let me say that if you met me in real life, you would get my story and agree with me/be sobbing on my shoulder within 5 minutes.
If you still feel the need to flame me, then don't bother - I'm not going to check this thread again - serious replies can be sent to my pm - I'll delete this account in a month or so.
Really - as an outsider, coming in with a serious question - wholeheartedly asking for advice - you lot should be ashamed of yourselves. You didn't 'get' the story (apart from 1 or 2 - thanks to you guys) so why didn't you ask before casting judgement??
Seriously - ask first, judge later. You are sad, horrible, twisted people. (I would make a remark about my profession here, just to enforce my feelings - but professional judgement prevails.)
Goodbye.