I think I'm scared to be gay

I'm 16, I know I have a lot to learn and have a long time to grow up. I'm just trying to do the right thing in the situation I'm in. I'm bisexual, I know that much. I've known that much since homosexual porn became more frequent than straight, probably over a year ago. Now I've never wanted to be with a guy. I only liked them sexually where as I liked girls emotionally and sexually. I decided it would be easier to just play straight, I wouldn't have to come out to parents and life would be easier. I've had random hookups with guys, it's fun. No big deal, just fun. But I met this one guy, he sent butterflies to my stomach. He's adorable and is super sweet. And I've found out that he likes me. I know I like him. I know I want to date him. I'm just scared because this is not what I've wanted. Does that matter? It all just feels crazy so I thought typing it out would help. What do you think?