She suffers memory loss, becomes really upset, aggressive and hostile towards me over things that we should be able to sit down and talk about. I have been blaming myself for upsetting her but it's like she turns into a different person when she's upset and it scares me. She loses her temper when I upset her unintentionally and won't listen to me or calm down. It upsets me and worries me because I love her and would never dream of hurting her intentionally. What do I do? We have broken up twice already, it's like I'm treading on egg-shells and I don't want to lose her forever…