Not ready to leave someoneWatch
Am I a fool?
You can compare which you prefer. When with him or when away from him, there’s a lot of flexibility in deciding.
You’re definitely not a fool for prioritising a healthy mind, it’s the appropriate and smart course of action.
If that doesn’t work though - you could always just both talk about ending it. I would say that’s a reasonable final straw. But make sure it’s sooner rather than later.
Either sit down, discuss the issues and decide if they can be sorted in a reasonable time frame, or end it and move on. No point hanging around being miserable for a year.