Just saying. Not an AIBU.
MIL 1 I was very close to. She did seem a bit unhinged in our early years but I understand now that she just loved her son so much and probably found it hard to “relinquish” him to me. I totally get that now.
Her son left me and she was a great support to me. She died a while ago and I was heartbroken, I went to her funeral and it was actually nice to see exDH, I made my peace with him long ago. No DC.
MIL2 was lovely though I wasn’t with her son when she died so she never saw her grandchildren. That saddens me.
I have two 2 DS and I hope that I will be a good MIL one day. Hard to know what makes a good MIL though, from all the threads on here.