Sentence:  The end wasn't about money, nobody had an affair, and no firearms were involved. I think what I learned from the experience is that if there are things that bother you before you get married and you can't even discuss them, can't even talk about how to change or deal with whatever issues are going on, run. It was an exercise in <WSD>Chinese water torture</WSD> for me. 
Meaning of the word marked with <WSD> tags:  Any repeated irritation that builds to deliver cumulative damage.