Honestly I suspect that your son might feel similar how you feel. Like if you love someone, sometimes you do certain things for them regardless if you like it or not. And it goes both ways.

He might think since you love him you had to accept that it’s HIS wedding, his bride and he can do whatever he feels right and he probably felt that if you loved him you’d attend his wedding even if it made you uncomfortable. You love your son though. So see you can love someone and still hurt their feelings.

Same happened with him. He loves you yet he didn’t think he had to do things to make you happy like that upsetting situation with him getting her a diamond not of yours choosing and then him not making changes to the wedding to make you comfortable. Love really had nothing to do with it. He loves you but he didn’t feel he needed to make those consolations

We hurt people’s feelings all the time consciously or subconsciously directly and indirectly. It doesn’t mean we don’t love them or they don’t love us. A lot of things we just have to accept. And we have to accept that when our kids marry they “leave home”. They have to make their spouse and their new home a priority (unless they want a divorce). It doesn’t mean they love us less. Just their priorities shifted, and that’s how it has to be