Dear Eric: I became friends with “Sue” about 20 years ago; our husbands became friends, too. When the camp closed for the season, the Friday nights out would resume but included some of their new camper friends. We weren’t in on their inside jokes, didn’t know the other camper people they would talk about, or sometimes they couldn’t meet us due to plans with the camper friends. We tried to schedule dinner during the week, just the four of us, but the plans didn’t work out due to family commitments that Sue had or her husband’s work schedule. Notably, the group dinner with camp friends is something that you’ve opted out of.