Is it weird to fly home to visit my parents without my long-term partner?

I’ve been in a relationship with my partner for about 6 years now. We live together and she always likes to do things and go places together. Especially things involving her family, she likes to include me even if I don’t think it’s necessary for me to go every single time. For instance, if she needs to visit her father, who lives about 1.5 hour drive away, I don’t mind if she goes to see him but I don’t feel I need to go with her all the time. But she always wants me to go, to the point of trying to bribe or guilt me into it. “He’s old and could die soon.” – something she’s been using for the past 6 years.

Anyways, I’m wondering if it would be mean to tell her I want to go visit my parents (3 hours flight away) without her. She’s met them before but the problem is that every time she came with me to visit them, I ended up having to be her tour guide and show her around my city and entertain her. It was super stressful and we got into huge fights. She didn’t really want to stay at the house too long so I only got to spend minimal time with my parents. But my purpose of going there in the first place was to spend time with my parents and they’re homebodies so they’re most comfortable at home. And now that I haven’t seen them for 2.5 years due to the pandemic, I’d like to go there and focus on them for like two weeks without my partner. I know my partner is going to be upset, but I’d like to know what others think? Is it mean or even inappropriate to go visit my parents without my partner? Is this a boundary I can have? I don’t think we need to do every single thing together? What’s it like it your relationship, do you go with your spouse to visit their parents every single time they go? And is this weird for me to not want my partner to come, not all the time, but just not this time?