Not seeing the point in going to family lunch

[lolaflores]

Both sisters and brother have made nearly no contact with me or my DS2 in the last 9 months.
There have been various meet ups that happened that we were not invited to and yet pics on FB were posted and so on the latest one being today involving cousins etc.
My DS2 not invited to either of her cousins birthdays.
It is Sister 2's birthday in a few weeks and a lunch has been organised that we are invited to and right now I just really don't feel like it. If I were to go, I feel it is saying that leaving us out of everything else has been alright and that I am content with crumbs?
I had agreed to go for the sake of my eldest DD, but i just can't bring myself.
i feel so hurt, bullied and hyumiliated.
I don't want a confrontation but I do want to express myself.

Can you not just call your sister and ask why you are being left out? Explain that your hurt and resolve the issue.

I would be so hurt if my family did this and you clearly are so surely it's better to fix it than to carry on being hurt and angry.

Yes, ring and ask why, and what have you done wrong? It's so mean and hurtful when this happens.

I don;t want to ring, because it seems from their behaviour that there is absolutely nothing to salvage and neither of them would be honest enough to answer me. Or deny it all.
My mother pretends its not happening.
My birthday went ignored.
easter too.
She didn't thank us for birthday presents for nephews.
I keep going over my behaviour and i haven't done anything.
Then they want me to come to lunch and behave like its all normal.
Sometimes I think she wants me to ring so she can create a mahoosive fight and she can then point to it as the root of it all...i.e. me.
I think I am imagining it, then not....I am bi polar, I have had a couple of breakdowns, hospitalizations and it makes me not blieve myself.

Actually, forget that answer above...I am scared of the answer to any questioning of their behaviour. I think it will just be a big delivery of more pain.