yes, why is he still living with you and having this affair with OW? are you still cooking for him and doing his laundry? what is the OW doing for him? all the EASY stuff?!
since you don't seem to be able to stop him, you might tell him to, yes, take the dog and the daughter, too! she may as well get a feel for what her life will be like from now on...

M:63
H:53
S:41, SS:28, SS:25, SD:23
M:15
T:16

Bomb:12/17/11, "I think we should go our separate ways."
H moves to his mother's house, 4/1/12
12/21/12: H moves back home, piecing