I think there are certainly things Philip has fair reason to resent over the years, and some inequalities in their relationship that are still there now, but I think Philip also fundamentally understands Elizabeth and the reasons she had for the things she did that were hurtful over the years. I think he's proven that he's capable of moving forward, or else he wouldn't have been able to forgive her for much bigger hurts committed over the years, and yet we saw he was.

I think it's important to remember Brad isn't entirely real. There are elements of what Elizabeth shared that are real, and there are things she clearly drew from the way he reacted that were probably validating, but I don't think, for example, that she'd be comparing Brad and Philip sexually. Brad actually has a lot of Philip's qualities in terms of caring, being soft in some ways, being genuinely upset and willing to break rules because of being so outraged she was assaulted. But it was made clear she didn't want to be having any sort of sex with Brad in the car scene. Her face completely changed as soon as he couldn't see.