Factor in the following: my ex and I are still best friends and confidants. As we went through this little slice of hell, what was best for our kids above what was best for us was top of mind.
Now, factor in the following: I've learned - the hard way - that investing yourself into certain things can net you things you didn't have. For example, without dumping all into the community, I wouldn't be where I am in my career, and I would not have discovered things about what I want to do in that career.
Now factor in what I described is the sign of an extremely obsessive, insecure, and potentially depressed personality with no actual definition of "self" outside of community, work, and kids. Literally - now that I've set boundaries I'm busy looking around saying "Uh. Shit. Who am I?"
Now factor in the strict clinical definition of what you go through in a divorce - it's akin to significant loss (e.g a death in the family). You go through (as I am) many stages of that including grief, depression, etc. I'm somewhere in the no man's land without an end in sight just as of yet.
Now factor in the severe anxiety and depression that comes with all of that. Yes - I could quit my job and move just to be near my girls. However not being physically or mentally fit outside of my definition of self in my career I would be throwing myself into a position of not "not moving on my own terms".
Think of it like this: I agreed, with my ex, that this would be the best course of action for now. Just up and moving wouldn't solve the root cause of why we separated, it would just solve one aspect of "me". This would result in a probable mis-directed resentment on my part towards my ex, my children and others.
Therefore, while given the information you gleaned you may be correct albeit callous, you are right that there are many more factors in a situation like this to be taken into account.
Net-net - mental health is hard. Recovery is hard - you can't tell a depressed person to "just don't be sad" and you can tell a person with an addiction (such as I've gone through) to just "give it up" without a goal, or a process by which to solve the root cause.
I look forward to reading the followups! I can't say I totally understand (as probably no one can), but wish you the best overcoming this addiction, and getting back to your sense of "you".