Hello, melissamabd, and welcome to Psych Central! No, I certainly don't think you are required to like your daughter's girlfriend. It would be hard to like someone who is rude to you.

That said, it wouldn't hurt to try to be at least civil to the girlfriend and maybe even try to be nice. Perhaps she would then be nicer and the relationship would be better. And your daughter and husband would be happier.

My mother never liked my husband, and that has certainly made my life harder. I wish she could have been kinder. He is a great guy.