To go back to part B of what I said about telling her...
You said If that's the case she won't believe you and he being the liar that he is will make up some story that she will believe because she wants to. She has no idea who you are or what your character is and worse, she seems to believe she knows her husbands character. She'll cling to whatever he says and she'll regard you with hate and anger that you would dare attepmt to break up their home. If he is aware you know and is avoiding your calls, I think you should focus on yourself for awhile. Do things for yourself that maybe you've thought about but have put off. Hang out with friends as much as possible. AND perv around Pixies as much as possible...

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these