I think that many of the old timers here wish for a better ending - one in which some sort of relationship is possible - to co-parent, co-grandparent etc.
We see article links posted in which people divorced and met up again and re-connected, but in MLC land I am not sure that happens much. Upside is the exception - most of these people are hard-core!
Like you I see the crazy women that my xh has hooked up with and can only shake my head. Realising that this is as good as it gets, and the best thing is that they actually leave us alone, is a hard lesson. Nothing about this is normal.
