The one thing you can do at the moment is hang on to the fact that your work life is good. ime the way you are feeling you need home or work to be ok. Or is it only good because of G and you look forward to going to work and escaping the tedium of home?
Like I said before, you need this Relate appointment to help you see things more clearly. Do you love H? That was my defining question in my counselling. I could not say yes. I knew then I really didn't.
It still took a few years for divorce to follow as H would not accept it. I struggled on but the fact that I had those feelings for 'crush' meant that I was looking for something more.
More wine and hugs I think!