Ok - long story short. Been with DH for 27 yrs and have tolerated a strained relationship with mil. He is one of four and me and my two children have always been obviously treated less favourably (think babysitting, inequality with Xmas gifts, free holidays to the other siblings and not us etc). None of this is massively important to me but the children are now becoming aware of it. She is opinionated, judgmental, insincere and generally disinterested and misunderstanding of us. When DH has tried to raise issues with her she cries and blames us for things.
So we have been invited to SILs on Boxing Day - MIL will be there. My first reaction was to boycott but a) feel I need to set a bit of an example to my kids 2) don't really want to spend the day alone and c) don't really want to sink to her level! I am apprehensive about the day but will bite my tongue and nod and smile. But she always insists on this gross kissy huggy embrace when we meet. I know it is childish and ridiculous but it fills me with dread and repulsion and I don't know how to avoid it. Suggestions please....