Been lurking for a bit and want some advice on my current situation.
DH had an affair a while back and I stupidly took him back even though deep down I knew I would never really forgive him its just not in my nature and have felt like a pathetic doormat ever since.
The situation is more complicated because the affair resulted in a child a little boy now 6 which my DH has regular contact with and clearly loves. We have two DS of our own both 8 and 11 who were the main reasons that I stayed in the marriage.
And some time ago the OW has told my DH that she has cervical cancer and it has become terminal, which means my DH is going for custody of their son although the boys grandparents want him too.
If am honest I checked out of the marriage along time ago and for the past few months have been having an affair with my boss, its not going anywhere and is already started to fizzle out (He still loves his wife and isn't ready to be with anyone else plus I really want to be single)
Ever since this has been going on my youngest has been kinder to his brother and is clearly developing a strong bond with him. I have caught them cuddling in bed and my DS tells me his brother crys at night and he comforts him and my eldest while not being overly affectionate has started letting him play in his room and doesn't glare at him which is a big thing for him.
I fell incredibly guilty but I want to end my marriage but I don't know how if there is a custody battle is it best to stay until my DH gets him or should I end it before and risk the grandparents winning custody. Plus with the developing bonds my son is making I don't want to be responsible for more hurt but I cant keep going on with this sham of a marriage.