YOu know - I rather doubt it would be a repressed abuse memory. Those exist, but are fairly rare, and there was a period in the 80's/90's when a lot of lives were ruined by bad therapists reading "repressed abuse memories" into everything.
I think it's more likely that you feel vulnerable about being on your own (as you let go of H), and scared of thinking about dating (hence the fear of being sexually assaulted - maybe a metaphor, btw, for being emotionally vulnerable if you fall for a new guy and get your heart broken again) and feel threatened by "a guy" (when actually it is H's departure and behavior that really seems threatening to you - it is probably a stand-in for him).