Thankyou all for your replies they are insightful and mean a lot, I have some serious decisions to make in moving forward as I am aware that it is ultimately not only affecting me but isn't fair on all concerned. I believe my indecision boils down to my fear of having yet more regrets with either losing my wife, being there full time for my daughter and a home (although I am aware I initially made this decision), my girlfriend or losing all (taking time out).
When initially leaving I was happy with my decision, I felt it was the right thing to do for all concerned including my daughter as the atmosphere she was growing up in wasn't healthy for her and I couldn't see why everyone else couldn't support my decision, but on hindsight this feeling may have been an illusion concocted from the initial honeymoon period with my girlfriend. Now that the dust has settled I do miss aspects of my old life but again can't conjure up any love for my wife, she says to this day she know's what went wrong and will change as she so desperately wishes to piece her family back together I just wish I felt the same about her, is this something that could ever be present? Has anyone been in this situation where they have returned and it has worked?.
I have thought of getting my own place but I can't afford it and this would ultimately lead to my girlfriend and I breaking up as she would see it as a step back in the relationship when she wants us to move forward.
I love my girlfriend very much we connect on so many levels but sometimes I feel if I am unhappy now why don't I just go back and be unhappy, but in my home and with my daughter as unhealthy and pathetic as that sounds. Thanks again for your replies they do help a great deal.

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