Torture

When she overthinks, she harms herself. She will remember everything. She will go over everything, again and again. She will remember words and indiscretions. She will remember how you reacted when she needed reassurance. She will bury herself in evidence. She will make her heart hurt. She will not want rationalisation. She will not listen to you or anyone. She will prod the wound again and  again until she bleeds. Until she's in pain again from her own actions, tortured by her own mind. It'll kill her one day, you'll see.