Is "dead zone energy" worthy of divorce?

Inspired by @Coloma’s phrase in this thread.

That is exactly how I felt in the last few months before leaving. I spent a LOT of time in bed struggling with depression. I also know my daughter saw through attempts to ‘make nice’ in front of her.

The first thing people ask is if there was infidelity or physical abuse (there was verbal, but I never mention it) and they look at me funny when I say no. I can’t help wondering if my reasons were good enough.

Again, I don’t need to hear you can’t say anything specific to my marriage so that is not the question. Just in general, is leaving ever acceptable in this type of marriage?