TRIGGER WARNING, mentions of rape.

hey guys, so its been about two and a half years since i got out of my last relationship with my ex girlfriend. while we were together we were both pretty horrible to each other but now i have a boyfriend who treats me really really well and amazingly and respects me and everything about me. while i was with my ex girlfriend, she raped me and it has stuck with me in ways i did not realize or expect. my boyfriend and i were trying to have sex last night and i has a full on breakdown recalling what happened to me and what she did. any tips for how to move on past trauma / PTSD?