I only ever seem to pop in to the same thing. I do have other things I'd like to say but i don't think Solo is ready hear them yet.
But as I've said previously - it isn't that Solo has no anger - it's just she's misdirecting it on to the BB rather than the H.
When Solo realises how irrelevant BB is to the whole thing and accepts that even the BB is being treated abysmally will she see what a shit the H is. I'm not suggesting anyone have any empathy for BB - but really what kind of man takes up with a woman and then snipes about her the way this man does?!
It really scrapes the barrel for someone not to have the guts to carry through with words what he has done with his actions. It is clearly cruel and only due to his self-interest in spinning plates.
At least most shits of husbands that leave don't play around with the ex-wives heads to this degree. It's not because they don't have any doubts themselves it's just they take responsibility for decisions.
Until the time when Solo is really hearing, feeling and understanding this concept of BB being irrelevant will she get over the hurdle and really understand the other things we'd like to wake her up to.
Solo you say you can't understand why he left a happy marriage etc. The answer is very blunt and simple. Not nice to hear which is why we don't really like to hammer you over the head with it. The reason he left is because he felt entitled to the thrill and excitement, fun, the novel and newness of sex with someone different. Don't like saying that to you at all. But you need to stop wondering why and just starting thinking what a self entitled prick he is. He gave up a good marriage because of exciting sex (will dwindle obviously to more run of the mill sex) but that's the long and short of it. Move on from wondering why. You have to. There's nothing to solve. H is a self entitled prick is the answer. Stop pandering to enabling him to live in this parallel universe and start setting the boundaries.
Also very hard to say but I've touched on it before but your kids' interests may be to actually want a relationship with the two of them. I'm not saying you should like it and I fully understand why you won't.
It is time to gently set the scene that you are not averse to them meeting her (i.e. painting it in a positive light). Saying it'd be nice for you etc. Obviously I am only thinking of the confused feelings of your children here and know this is painful for you to even consider.
I think the kids will react negatively initially but I think the healthiest way for them is that they don't perceive it in any way disloyal to you if they are interested in finding out/seeing BB. This being presented positively to your children is the healthiest way for them to start to engage with their feelings. At the moment they may be stifled by thinking it would be too horrible for you and be like "replacing" you etc. This isn't healthy for them and they need to feel confident that you can cope with them possibly having "another life". Obviously what you think in private and how many dolls you have with pins in them is an entirely different matter of course.
You have to relinquish absolute control which will force your H to become a responsible parent as much as you are. Don't infantalise him by thinking he is incapable - he's not. He doesn't need your help to set up his living arrangements to accommodate being a live away father. He literally chose his bed - let him lay in it and make it up for himself too.
P.S. Re. the kids: I say all this all as someone who has been there. Believe me I know it ain't fun waving goodbye. I was like you frozen for three months until I realised meeting OW was inevitable - why put off for ever? The children being happy wherever they are is what I decided on. I put a positive spin on it and pulled my faces privately when told things they'd been up to etc.
Healthy children's minds - feeling free to explore their own emotions with no guilt to cope with. I'm not suggesting you are making your kids feel guilt but we all know what kids are like. Kids will take on so much emotional responsibility unless the space is created for them to explore emotions confidently in the knowledge that they aren't being disloyal. This is ultimately more important than us crying when they're gone because the shit of a H created the mess. Again been there - I'm not saying it's easy - I'm saying it's the healthy way to go.
Your disloyal H leaving you won't damage the children. However the whole situation ending up where the kids feel that sides exist and that the H and BB is the ones to blame and they need to protect your feelings could potentially be damaging.
Remember they don't have to meet her - it's their decision. But they should feel very confident that you are happy for them to do so if they wish and think of it in a positive light. This will take time as they will have picked up on stuff from you and will doubt you could genuinely think it a good idea currently.
Remember actions speak louder than words? It applies backwards to your kids also. You've told them you've split but to all intents and purposes while he is so at home at their home it is confusing for them. Set those boundaries. Let you kids know there is "another life" with their dad which will now not involve you (i.e. the current confusing situation will be ending). Put a positive spin on it ie. you are busy doing so and so having a good time while they're with their Dad etc.
Ultimately your H needs to get a place nearer you and take his kids there. He needs to do this. Not you - you will force the issue by no longer enabling him in the current situation.