My ex husband said things like that like about weight after giving birth (wasn’t even much of a weight), and other comments re preference in appearances like wanting me having certain kind of hair cuts. He made some insensitive comments and so did I. He remembered things he said because he asked for forgiveness years later. We had to ask each other for forgiveness for a lot of stupid things years later. We had to.
My ex tends to be insensitive. I knew I never want a man like that again. I guess his excuse was him being very young at the time and he greatly improved with age but at the core his lack of thoughtfulness still shines through. He still says things that could rub people the wrong way
I understand how you feel. I felt like that. I know the feeling. And I know I tend to be insensitive myself and can hurt people’s feelings.

It hunts you even if you forgive it. It’s like it never fully goes away no matter how confident one is.