How to deal with mean girls in the family?

Hey! Was a little hesitant to post this, but I'm not sure who to turn to for this advice. Do you have any tips for handling mean girls in your family (cousins, sisters, aunts, etc)?

For context, my cousin and I are similar in age and grew up relatively close. However, we started drifting apart in high school and went our separate ways when we moved out for college.

In the past few years at family gatherings, I started to notice that our values and interests are now drastically different. She's also said some questionable things to me on multiple occasions, but when confronted to further explain herself and what she means she'd just laugh it off. I always try to keep things at least cordial because I'm basically tied to her for life and will continue seeing her at family events. Every time she's back in town, she would text and ask to hang, but I honestly just come up with excuses not to go. I have a big family with many cousins yet she always seems to gravitate towards me (perhaps because of our shared childhood?).

How would go about this situation? She has a strong personality and can be extremely judgmental. I don't want to create hostile relationship, but how do I let her know that I don't want to be friends lol