I can absolutely relate to this. No doubt about it.part of me is afraid that he really went through with it - and part of me is stuck in a loop of fear that it's happened or is happening or will happen etc.
So, not sure if this will be helpful or not, but when I get caught in these loops, when I am not caught up in the thoughts, I strategize.
How will I save my daughter? Cat o' Nine Tails? Bring a bigger, stronger, more fierce version of myself to take care of him for good? A trip wire on the door?
Whatever you can come up with, if you can picture that in your mind - an ending - an empowering ending - an ending that puts an end to his even thinking about it for good.
It's a visualization that I would play with day after day after day. The brain is a fascinating thing. It doesn't at all know the difference between reality or not. You can make up any ending you want to and it will put your fear of this behind you.
I keep saying 'you' and I shouldn't be, sorry. This is what works for me, not necessarily you. However, I am way too something (?) to go back over the posting to change it to I. Please forgive.