My therapist calls this "touching the hot stove". When you put a lot of effort into a problem and fail over and over, your mind "gives up" as a protective measure. You can drive yourself crazy trying to push forward and find a solution in a straight line.

It is sometimes useful to get outside input or take a break and wait for new circumstances.

Not going to lie, it is also very possible a husband going to law enforcement gets taken more seriously than a woman reporting stalking.