I was so sure that he truly loved me while we were still in a relationship.
I heard some people say that those with BPD can’t love, while others say that they can love deeply.
or's right - we all love the way we know to love. Not sure it's fair to say that BPD's can't love. I've observed genuine loving care from pwBPD. It also seems exceptionally easy for them to slip into manipulative patterns to get their needs met, rather than loving for the sake of loving.
Did you feel loved? Feeling loved can be a wonderful thing, and no hateful action needs to take that away from you. You are loved and loveable.