I'm not sure if it would help to share my experience. As far as I know, I wasn't raped but I did get stuck in the belief that being attractive = assault/rape. I was overweight most of my life and only when I was at a healthy weight did men assault me, so I put the weight back on. Though I started to eat healthier, even though I wanted to be healthier for my sake, I could never get myself to be that proactive. Logically I understood anyone could get be attacked, it's not a survivor's fault, and being overweight won't stop violence. Yet experience has shown me that I get a lot of attention when I'm healthy. Years went by with me unable to lose the weight. Unable to really seek out "to be healthy for me" goals.
For me, when I realized I liked women and wanted a relationship with a woman... for the first time I wanted to be attractive. Not just "healthy" but attractive. Since I had someone I liked, it was a very real, tangible goal. I was still afraid, still am frankly, but somehow I convinced myself that I could handle it. I told myself I wasn't the same sheltered, timid person that got assaulted anymore. I would and could get myself safe or fight. I can also tell people to back off with so much more assertive resolve. Being overweight can't stop violence, but through action I can defend myself. I realized I had more/better resources.
I've lost over 50+ lbs over the last few years. Still have more to lose but I haven't gone back to being overweight to "feel safer". I have back slide but that's because dessert is yummy. I do get more attention from men but I can and do handle it and speak up if someone crosses a line. Sometimes I do panic or avoid, more often than I like, but I am still not going back to being overweight. I'd take avoidance over hurting by body.
Wanting to be attractive and believeing I could protect myself without the weight helped me. Having a goal helped with motivation but I think what was even more Important was believeing the greatest defense is my own power to act. Not my weight.