My sister is a lurker here on PS and is tormenting me until I ask you for your help. My SIL (my DH brother''s wife) has asked my sister to be her friend on Facebook. My SIL is not my friend on Facebook, because quite frankly I blocked her so she does not know I am on there. My sister thinks it would be impolite to just let her hang there and feels she should give her a reason.And she is freaking out about what to do

I said, she never sees or talks to you outside of my family events so just ignore it and she will forget about it.
It is not that I dislike my SIL, it is just that I many times (ok constantly) vent about my MIL or make MIL jokes on FB and don''t want her to know and go back to MIL with ammunition to dislike me more and her less.
So please tell my sis what she should do and she will probably listen to you before she listens to me anyway.
