I have read the entire thread 'how to know if your marriage will survive an affair' with growing discomfort. I almost hijacked the thread, to be honest I am desperate for advice for the people on that thread. But I started a new one... 
I posted a couple of weeks ago on the 'do I just suck it up' thread. Where I talked about how my (d)p and I have have a good life together but that it feels like 'something is missing'..
I feel that after reading all these excellent posts about the SG book I have realised a few key facts. a) I was an over-invested partner. Pushed for intimacy, connection and often felt rejected by my dp, b) As a result I became under-invested, withdrew and deliberately looked up an old flame (this happened while I was on holiday with my brother and his family so I can see how that was an opportunity to see p in sharp relief) c) now I am dancing around the edges of an emotional affair and at first I felt 'justified' (P was ignoring me after all!) but now I see that I am being 'punitive'. I am punishing my p for his distance.
And he can't help it. This is just the way he is. I understand he can't change and he doesn't deserve me to treat him badly.
I don't know what to do now. I am not sure I want to salvage my relationship because there is alot about us which is not compatible. Intellectually and emotionally we have little in common. But we have two dcs together a house, and well, it's all comfortable and stable at the moment. I have a stressful, full-on job and he and I both depend on each others support for different reasons. Also there is a big part of me that doesn't want to give up this email exchange as it has been a welcome reminder that I am interesting and smart. (Both my p and I work and we share most household and childcare duties evenly)
So I am torn between not wanting to destabilise the children's lives and me pursuing a life (not with old flame as he lives across the world) which enables me to meet a man who I have more in common with. This sounds really selfish but I think I deserve to be with someone who finds me interesting and kinda cherishes me, who asks me about my day in the evenings. P is a good man, great father and stable housemate, but ... imo a crap boyfriend. I am literally downsizing an organisation from 24 to 3 people and it's hard hard work and he doesn't show any interest.
oh I don't know. But I have had many nights where I have just cried because I feel so disconnected from him. He is incapable of talking about feelings.
I worry that I have a completely unrealistic view of what a happy couple should look like. and that I'll never be happy anyway because I torture myself.
I tried to imagine how I would feel if he left me and I am not sure... part of me, horrified, embarrassed, scared of being a single pt parent, but also some of my concerns are logistical. (how to organise the kids etc). I am scare of being alone and I don't know if I am unrealistic in my expectations of a happy couple.
My parents weren't happy, my mother isn't happy in her second relationship. I feel at sea, like I don't have any bearings, and so I don't feel like I can trust my judgement.
What do I do?
(PS I live in New Zealand so I can't reply until my morning/your evening, so I'm not ignoring, just unable to respond quickly, please bear with me.)