We used to have a big family reunion every summer. My family has gotten smaller over the years so this year, we're having a barbecue at my cousin's house. None of my cousins who are my age will be there. I will have to leave early no matter what to go on a date.
Should I just stay home? Is it rude to only stay for two hours? If I go and leave early, what can I tell them (I'd rather not mention a date)?