have visited her cousin has also been there, which is fine of course. however, one of them will say something which causes the other to laugh and then tell me it is "a private joke" but they will then carry on the joke leaving me sitting there with no idea of what they are talking about. the last time it went on for so long i almost got up and walked out! she telephoned this morning and invited me over next week - i have told her i can't because i am busy all week.
now i know families have private jokes but surely to continue a joke which seems calculated 