Running into my abuser

He was a close family friend so I always knew I’ll see him again but today i did. At our local grocery store. Which means he lives close to me and I panicked. I was wearing sun glasses and have completely changed my look so I’m sure he didn’t even see me. I went to the back of the store and told myself it’s okay. And waited for him to leave, it’s a small store with only one entrance and exit, so I couldn’t just walk out. Or at least I felt like I couldn’t.