That's not uncommon. Her thinking is that you are the cause of all problems.
OM is not the root cause of the problems in your M, he's just a current side effect. Really doesn't matter if she's committed to him or not long term. Until he's gone, she won't think well of you, and she'll say things like that ^^^^. Once he's gone, that's when she'll start figuring things out. She'll either give her M a shot, or find the next OM.
