A different kind of jealousy in a relationship

you and me both buddy

Same here. But I try to harness those feelings into the drive to make my own family, and be the mother that I never had.

Just made me feel bad for my love

Why don't you join her when she's visiting? Maybe you can have that kind of relationship with her parents eventually.
If you are OP of course. If not, you probably won't have use for that advice.