I dont know the answer to the general "Why do we get stuck on these rumination wheels?" because I get stuck on them, and don't know how to get off them either!

But my T has asked a similar question to as "What would happen if it stuck?"

Would it be that you would be forced to accept the situation as something awful and tragic happened to you, FEEL those awful feelings and really deal with it?

(I have no idea..I am just throwing out ideas)