Instead of blocking someone, let me overcome my desire to block them

I unfriended someone on Facebook a month ago because she was really unfair to a good buddy when divorce time came.  Now she makes comments on my Public posts and I thought well, I’ll just block her.   Then I thought, why bother?   Let me instead learn to see her name and her words without being triggered or thinking she should do anything to please me.  Let me use my aggravation to practice not being attached to what she does or did or did not do.