One of the many ways her husband has let her down over the years is that she has no idea how her body works, or how rhythm works, or how to be subtle. Strong sense that at bottom her role in their relationship has been that of receptacle.
She defends him: he's a good person, he's supportive, he's helped her. Must be so: but it's not enough for my ethical two cents. Mostly he's a child with a child's sense of self-importance.
Yet you have to admit to your own ambivalence. Not over her. Over agreeing so quickly to be coupled. All of which plays havoc with that same ethical two cents you're so quick to throw at her ex.