I've been following your story for a while now and looking for a new job is a huge step for you. I'm a Betrayed Spouse and I have to agree with others. Enough is enough. I'm six months out and I can't imagine putting my WH in that scenario for eight months.
The other thing, that to me is very important, is children really need their Moms. Unless you have some drug habit or are abusive, I don't think it's healthy for you NOT to be in the home with your daughter. She should be everyone's top priority.
This may sound weird coming from a BS, but in everything you've posted over the months it has seemed to me that your BH is actually acting like a Wayward. Are you *SURE* he ended it with his "friend"?
And also agree with others - NO MORE SEX and get your own apartment. You've come a long way.