He knows i like him

My crush knows I like him, but he acts like he doesn’t know. Let me give a little backround. So at our school for Valentine’s Day you could send a flower to someone for a dollar to help out the school. I didn’t want to but my friends just told me, do it. So I did it, but on the note I didn’t put from who. So a day later after Valentine’s Day, my friend and I were talking about it and his nosey friend was listening to our conversation. She went along and told him everything she heard. So now he basically knows I have a crush on him and that I sent the flower to him. He’s been acting the same towards me, and he doesn’t bring it up at all. He doesn’t know that I know that he knows. If that makes sense. He’s been a little shy at times, but he always makes it confortable between us when talking. He also goes out the way just to have time to talk to me. We flirt but I mean, I flirt with everyone. Is it normal that he is doing this? Does he like me back?