Look Sipdookly, Tess may not be the birthmother but when you marry a man with previous you pretty much have to accept that his kids are part of the deal for better or worse. Tess may not have anticipated having her DSD living with her from such a young age, but there we are - it happened, and she stepped up to the plate. Now is not the time to start nit-picking about biology. SHE IS TESS'S DAUGHTER. Tess is the only functional loving mother this girl has. And Tess has said that she would feel no different about this whether she was the birth mother or not.
Personally, I think her DH would be right o be a bit fucked off if Tess withdrew her support purely on the small print - but she hasn't.
My DH leaves almost all day to day practical childcare decisions to me. Not because he doesn't care, but because he has always been out of the house for 12 or more hours a day, and I haven't.
Yes, I agree this man could be being WAAY more supportive of Tess's needs, but he is carrying alot of guilt and fear over his daughter too. I don't think he's a cunt. I'm sure he's a very good man. He is just not thinking straight (or fair) right now. Let's not forget he was the first one to say she could continue with the PG. (misguided in my opinion, but there we are.) He certainly hasn't abandoned her, he has just taken the coward's way out and left Tess to do all the awkward stuff.
He needs a bit of a dressing down, not burning at the stake!