What are the chances he saw my post?

I made this post on a public page about the guy I like thinking it was a private page. We didn’t become friends on Facebook until a few days later and nobody had responded to it since before I added him and then today my mum who has hardly any friends on Facebook told me it came up in her news feed. I deleted the post straight away and then went and checked that we were still friends which we are. I was embarrassed because I asked a psychic if we were right for eachother. He has a decent amount of friends on Facebook and he hasn’t liked or responded to any of my posts since we added each other and we haven’t spoken in messenger either.