Here's the scenario - your SO wants you to go with them to spend time with a group of their friends. You don't like their friends, and would rather stay home and read. Your SO insists you come anyway, but says you can bring your book and read there.
Do you think it would be rude if you did this?
This happened with my husband and I over the weekend and it seemed extremely rude to me to go and just read. But he doesn't think it's rude at all.