Oh, I understand the tactics being used. I was implying that person c was obviously stalking person a and pounced the moment they did something less than perfect.
My guess is there isn't anything of substance, so person c's sensitivity got amplified with time and obsessing over whatever is going on, leading them to overreact. But, not c has to double down if they want any chance of being taken seriously if a significant cause to defederate occurs.