We are friends with two other couples. Nearly every Friday night, we go to dinner with one of the couples and often with both. There is another couple who shows up at our watering hole and expects to be included. In the past we have, but it is always an added stress to the evening.
Last Friday I just pretended they were not at our watering hole and avoided them and therefore the subject and the woman asked why I am mad at her/them. I'm not angry, I just don't want to go to dinner with them.
In the past they have gone so far to ask the bartenders where we are having dinner if they arrive after we've left the bar and headed to dinner elsewhere. We also have a newer watering hole and they followed us there. I am not good at tactful confrontations and would prefer not to be a full out bitch this coming Friday. Any advice is welcomed.