I'm scared of doing things on my own, like the practicality of it all, and I'm scared about how he would cope with separation, as I don't think he'd take it well.
The practical side is something I learned to manage one step at a time. I have a chronic illness that makes it hard for me to do anything, but I discovered that a small apartment on my own, where I could control the environment, was easier than living in a large house with my ADHD WS.
As for how he'd cope, if you decide to leave him, that's his problem. It took me some time to start shifting out of the "we" mindset that you get after being together a long time. His emotional health won't be your responsibility.
How did you make your final decision to separate? Especially if they really were putting in the work and making an effort to change? And was it all as scary as you thought it would be?
Mine did start putting in some real work, but it was too little, too late. I carried too much pain, fear, and anger to want to let my walls back down with him.
What helped me make the decision was to do a trial separation. I think getting some space and knowing that it's reversible takes some pressure off. What I discovered was that I found immense peace in my own place, and my will to live returned. I was happier without him, I didn't miss him, and I didn't want to go back. It was pretty clear!
Was it scary? Yes!! He and I had lived together in the same house for 25 years. It was strange and scary to be signing a rental lease and to move in. But furnishing and decorating was fun. And once I was there, it became my cozy safe haven.