I think the fact that you’re both younger makes a difference. If you were closer to marriage, and seriously considering legally joining each other’s families in the next few years, that makes this type of sacrifice much more important. But if you’re both on your way to college, it’s a lot less likely you’ll be interacting with each other’s families a ton, at least during the school year. Overall, I could be wrong, but at that age there’s probably many steps before marriage, so unless you have to see them all the time, integrating into a family you find difficult doesn’t need to be your biggest priority. It can be done in smaller, more manageable doses than a prolonged trip with them. I also respect the honesty in an uncomfortable situation