Dw's sister is having affair with a married man 20 yrs her senior.
He has decided to leave his wife of 21 yrs next week and move into rented house with SIL and her 9 yr old DD.
SIL lives with MIL in MIL's house and wants help to move her furniture into the rented house.
I do not agree with what they have done and have refused to help hem move on moral grounds.
My EXDW had affair with a friend of mine and destroyed our relationship with devastated me so I have some idea how his DW must be feeling and so cant do anything that could be seen as condoning the situation.
DW is torn as she feels horrified at her sisters actions but its her sister.
I think her DSis is heading for some sort of breakdown as she is failing at her work training, completely ignored DW's birthday this week and totally forgot she had agreed to babysit for us this weekend.