My sister has been best friends with K since they were at uni 20 years ago. Pretty much inseparable. K suddenly stops returning my sisters calls for about 2 months. Even on Xmas day she 'just missed her'.
A month later my sis gets a call from K partner to announce they had just got married in south Africa - apparently all last minute etc. My sis delighted for them until it transpired her parent and 2 other close friends were at this 'last minute' wedding. Sis and K talk it over and K says it was because she wasn't sure she wanted to go through with the wedding.....blah blah.
After asking my advice I thought that sis should de-friend K over this, not a true friend, pre-planned to exclude her and not invite her to her wedding but did invite other friends.
AIBU - should she stay friends and forgive? Is this what it means to have a true best friend - compromise and working it through?
Or is this too big a deal to get over? Advice really appreciated.
My sis is utterly devastated.