MIL made a comment that I overheard (I assume she didn't think I could hear) and I was very offended. Alluded to not trusting me, with absolutely no reason not to.
I've done quite a lot to help her over the past 15 years and thought we had a positive relationship so I was gutted.
I confronted her as soon as it was said, and told her I was utterly confused by her comment and very offended. She tried to wriggle out of it but we both knew what she was getting at.
DH completely backed me up, was offended on my behalf, and told her she'd upset me. She said "well, I'M upset now" and hung up on him.
There was no contact for a week, until DH phoned her. He suggested she apologise to me, and after a few days I received a WhatsApp from her saying "Sorry."
Should I let it go?