Soldato
I wouldn't even entertain the mother. If the girl is big enough to go sleeping around behind your back then she is big enough to fight her own battles and her mother needs to be told to **** the hell off and mind her own business.
Also - go get yourself checked out for STI's. No telling what she may have contracted with her sleeping around.
Also - go get yourself checked out for STI's. No telling what she may have contracted with her sleeping around.