How would you feel if a guy said that he j*rked off to you??

Hi. So i met this girl online. We get along very good. I think she is a girl that tries to understand me and my thoughts, like no one ever did before. She is gorgeous and cute as hell. We are flirting very often. And she is very attractive. I jerked off to her and i know it’s wrong. I want to tell her, do you think she will block me?