If you haven't seen it yet, FM, it really doesn't matter what you do. She'll find a way to build resentment against you regardless of what you do. Think about it. In this case, you didn't make her choices for her. She did. But she's twisting it to blame you and is building resentment about it. Did you do the wrong thing? I don't think so.
Is it a good sign if they build anger? Sometimes because that means they at least "feel" something. Anger is the easiest tool to use to express their feelings, and as the old saying goes, if the only tool you have is a hammer, all your problems begin to look like nails
She had an affair. She wants to leave.
How is that your fault again? It's not. It's her choices. If it was about you, she wouldn't have to be angry. Remember that; it helps
AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."