Frank_D coined the term "friendly" but not friends.
In fact, he began to slowly push his wife out of the house, planning things with his kids and not inviting her. Only if she invited herself would he say OK.
He called himself her "secret friend". Deep down she knew he was on her side, but, somehow she could begin to feel his absence.
Ask him about it. He's a good guy to help you figure this out.
