Never take it out on the child.
That being said, always be honest and blunt to those who put themselves above the welfare of a child.
Two deviant raising a child, with no Father, is child abuse.
I met a gal who had “two mommies”. She says it messed her up when she was younger. She did not know it at the time but she knew something wasn’t right about their relationship.
Last time I spoke with her she was married and doing OK.