Let's say you're thirsty. You came across a half-open soda can with unidentified debris in it. Looks contaminated. What would you do? I imagine you would throw it out. It's ruined. But why are you so determined to discard or look away from the toxic thing your partner did or continues to do? It's like your partner contaminated the relationship and you're trying to pretend it didn't happen. So you drink it anyways and you wonder why you feel bad all the time.