It hurts to see how depressed and anxious he becomes whenever her sister-in-law is present at family gatherings.
When she informed her mother-in-law and father-in-law that she was no longer speaking to her sister-in-law, they understood and respected her choice.
Her in-laws are like parents to her, and she loves them very much, so she doesn’t want to have to skip their Christmas celebration. But she won’t allow her sister-in-law to disrespect her or her husband.
What advice would you give her?
You can read the original post on Reddit here.