MIL only nice when others are around

[Littlelantern]

AIBU in thinking of bringing this up, or do I just ignore it and carry on. When we are in a family group MIL is nice to me, makes convo etc. But when we are alone she almost blanks me, doesn’t even make eye contact, doesn’t really listen to what I’m saying. At first I thought I was being over sensitive, but it’s been made clear to me now. I don’t think any good come of saying anything!

My SiL is the opposite.

Nice enough when we're alone. In front of others will constantly put me down. About anything; my clothes, shoes, job, house, parenting.

It's baffling.

I would say something to her when on your own with her.
My mother in law will make jokes about me which are frankly rude, and I always just look at her with a face of shock and ignore her, so that other people pick up on it, it makes her look so bad and I look like I let in slide when in fact I am making a deal of it in a really passive aggressive way.

Oh gosh! So confusing being the reverse and nice alone but not in front of others...
See I don’t think she’d dare in front of others my DH is very protective of me and would never stand for it

unless there is a back story of favouring another dil or random other that she doesn't want to upset by talking to you in front of them i would be talking to dh about her, she is rude even if she's nice to you iyswim,