My DH has bipolar and has been in an elevated state since early March. It has been a difficult time although he has seemed calmer in the last week and I’ve started to relax thinking the hypomanic episode was over. We are visiting MIL with our 8yr old DS. Yesterday she said that DH had told her he stopped taking his medication 2 months ago. This would explain the recent episode. She has begged me not to tell him she told me. I’m trying to think of a way around it as I don’t want to cause trouble between them. However, deciding to stop taking his meds (and obviously he is free to make that decision) is a huge thing that should have been discussed between us as his MH issues affect our family deeply. AIBU to betray MiLs trust?