Being Fat Feels Safe

There was some significant trauma for which I have seen professionals for and received treatment.

C: Trauma
T: Being fat, means less attention from men, and less likelihood of being attacked
F: Calm
A: Eat more to feel more safe
R: gain weight

I understand why the unintentional model is there. It makes sense to me. It’s a natural to want to protect yourself. What I’m having a hard time doing is convincing my brain that I’m safe and there fore don’t need to eat food that will lead to weight gain. Any advice?