MIL sent a long message in a group chat..

I think it’s time for me to leave this chat, other family can continue to develop their relationship with you and can continue to have photos and updates of the childrens life 💙❤️
I am so sorry I was not what you wanted me to be, I was so proud to be a Nana, I tried very hard but I don’t think I was ever good enough.
I am so sorry I never called more but I find texting easier with my work schedule but I actually never received many calls back either.
I am so sorry what happened to your brother I never knew him but I was so so sad and upset for you dad & I thought giving you space to grieve with your other family was the right thing to do, but dad always kept in contact with you for updates as we was so concerned for you. I offered to have children on funeral day suggested we pop over when ever or you pop here, but we got that wrong to !! Sorry these are all new challenges in life which people act different too.
I think reading between the lines with all the cancelled events over the year it’s been quite upsetting to us too we do have feelings from wedding vows
Cancelled days out
Cancelled Christmas together
Cancelled Christmas carol service but despite all this we kept positive and kept smiling but it was always walking on egg shells. Scared I may say something that you don’t like.
I wanted to normal pop over no big deal gathering you come here or I come there
I wanted to see babys first bath first dinner first tooth first steps I been denialed so much as a Nana it’s hurtful especially when my friends have this relationship with there grandchild 💙
I adore the children and would of love them both in our lives so much more and it breaks my heart their not. I just wanted a big happy family which I thought I tried very hard.
But this has emotionally drained us know.
I’m so sorry we were not good enough for you

NB - we didn't cancel the events listed... She did.

Then she left the group chat.

Then father in law replied
Yes I totally agree and feel you will be better off without us in your lives as we clearly don’t meet expectations!

And he left.

This was months ago and now she wants back in saying how she misses the grandkids etc.

I didn't reply to the original messages. I was so angry. We tried a lot to meet up and they were busy and they'd suggest a date and we were busy etc. We had a young family member killed in January so have been grieving hard.

I just don't want to be around them at all. And I want to say that but how?