Me and H recently separated over many issues, this is a minor one.
He had his ex wifes date of birth as his PIN. So every time I borrowed his bank card for whatever reason (we have joint accounts) I had to type in her date of birth. He had it on his cards when they were together, then when he split up with her, then got with me, he still had it, then he set it up on our new joint accounts.
We were together six years, and he has only just changed it, as part of his campaign to get me back. He clearly thinks I am being silly to be offended by it.
So, AIBU to be offended and annoyed, especially as I repeatedly asked him to change it and he refused?