I'm straight but i had a crush on a girl?

last year when I was 15 I started developing feelings for a girl,at first I thought I was just jealous of her cuz she was so pretty in my eyes like the prettiest girl I've seen and.Out of nowhere I started feeling butterflies around her and started blushing at first I was in shock and didn't want to admit my feelings for her but as time passed I knew I had feelings for her.Am I bi? I feel like I like boys more than girls ....because right now I'm crushing on a boy and she has been the only girl I had liked so far