<human>: Using a throwaway. For this post, my sister is Jen, my girlfriend is April.

April and I met through mutual friends and immediately clicked. She's smart, opinionated and driven, and we just have a lot in common. I really love her, and she's the type of person I can really see myself settling down with. As soon as I realized that I was serious about April, I wanted her to meet my family because they're also important to me. We're a close-knit family and even when we have arguments, we've still got each other's backs.

She met my parents first but not my sister because she (my sister) was at school in the UK at that time, so Thanksgiving was the first time she met her. Now my sister is really smart and very driven. She was in the UK working at a major investment bank after finishing up a graduate degree in finance and now attends one of the best law schools in the country. 

During dinner we started talking about school and my girlfriend decided to give my sister a run down of why law school was a stupid decision and how it's not to late to drop out. Obviously my sister didn't take too kindly to this and the situation got awkward. My girlfriend apologized but my sister didn't engage with her for the rest of the evening.

Now the holidays are approaching again, and my sister has started making comments on how she doesn't want to deal with my annoying girlfriend. I know that my girlfriend made a bad first impression, but I think that my sister should just let it go. My parents have extended an invitation to my girlfriend to visit for the holidays but are staying above the fray otherwise because my sister and I are adults who can solve whatever issues we have with each other by ourselves. 

Am I wrong here? Should I bring my girlfriend home and let my sister just deal with it?

Can you condense the text into a few key points?
<bot>: My girlfriend and my sister hate each other and my sister doesn't want her to come home for Christmas. How do I navigate this?