Lwk told my sister about my SA and im scared

I've told my big sister about being SA'd by my best friend a year ago and now im scared for my friendship with him. I understand that what be has done to me is serious and he is my best friend of many years. My sa happend a while ago, like summer last year before summer break. 

I only remembered this, the same time this year, as part of a series of many breakdowns. 

I'm thankful my big sister is supporting of me, and has told me a clear plan of what might happen. He has a difficult home life and I'm afraid that something bad will happen to him. Even if on a level he deserves it. So yeah. I'm worried.

Bye bye :3