Just chiming in to say I was a girl that kept really busy. I kept really really busy until I had a weekend where I cried non stopping sobbing on the bathroom floor. My H acted as if none of this touched him, he wasn't GAL but he was friendly supportive wanting to be friends and I felt like he never cared obviously this isn't even affecting him. He told me later he cried himself to sleep, cried at tv shows, songs on the radio, he was despondent.
All I'm saying is we don't show our pain to who we perceive to be the source of it. I'm sure she's hurting too. If she's angry it may be a way to rationalise her decision to herself. I told him I never liked my engagement ring, always resented that I didn't get a proposal all sorts of things. Anything to support my decision, validate it to myself.