SIL and I have a strained relationship. The strain started a few years ago when she called me out on not understanding men have sexual needs and her DB was obviously sexually frustrated. Over the years other things have been said. As a result, I have learnt the best way to manage SIL is to keep my distance and be very boundaried with her. We don't live near each other and only see each other a handful of times a year, which is enough for me if I am being honest as I always come away feeling upset as a lot of her behaviour and comments are directed to me.
This Christmas it was as though I wasn't there. She would make attempts to be all jolly with others, but would walk out of a room if I walked in, be OTT with DD and would say goodbye to everybody else when leaving, but blanked me.
This Christmas every opportunity she had to have a dig she took it - comments were about people holding grudges over things that had been said, how my family were scrooge for doing Christmas in a different way to her, how I was weird for not having any outdoor decs or musical toys and asking if I kept in touch with DH's wives friends as I didn't bother to contact her. She recently moved into a new house and DH asked if she would give me a tour as I hadn't seen the house yet. She shouted at him so DH started giving me a tour. After he had gone downstairs, she was very rude and threw open her wardrobe doors asking if I wanted to see in there too. I had comments made about my choice of school for DD, how I didn't understand the school system, etc etc.
DH also had comments too so we ended up driving home a day earlier.
I've told DH that I am reluctant to want to spend Christmas with her again. He just said her mental health isn't good and to chalk it up as he also had comments, but for me Christmas is about having a fun and relaxed day not having to walk on eggshells.
MIL said SIL feels let down after coming to stay with us in the summer and not giving her support. At the time we had a lot of stressors of our own going on and didn't have the headspace to take anything else on.
She obviously hates me, which I can live with, but any advice on how to navigate this relationship going forward?