Just because you are willing to try again, doesn't mean you are settling for anything.
There is nothing that says you have to stay the course w/out ever changing if you start to try to repair your M. If you continue to try, that is great!
If it gets to a point where H isn't doing what is needed and/or you are not feeling like it will work out, then you can end it at that time.
You are not nor ever will be stuck somewhere w/out your permission. Only you can let yourself be stuck. Only you can let yourself settle. You have a lot of power and choice here. A lot.
