Open Question: Do You Think I'm Bisexual?

Okay so i'm a 13 year old male and I go in 8th grade but that's not the problem. The problem is that i'm thinking i'm Bisexual. I like girls but I haven't dated anyone since i'm really shy and I tend to focus more on my work in school than in stuff like girls. I like girls and there are a couple of girls in my class I like but it's too hard for me to ask them since I'm really shy. The other thing is that I also sort of like boys too. I'm more physecly attracted to boys because well you know we guys are masculine in 8th grade and stuff like that but I'm also more emotinaly attracted to girls becasue I like how they really help you with your problems and they're sweet and nice. I finally told someone about how I feel yesterday while talking with one of my male friends on Myspace. He told me "hey I want you to know something about me." and I said "okay what?" and he said "I'm bi" and I said "are you sure?" and he said "yup" and then I told him "well im that case I think i'm Bi too" and he said "Realy!?" and I said "yup" and he said "but its normal right?" and I said "yup". So what do you think? Like I said I feel more physacly sttracted to males but more emotinaly attracted to females. I feel almost equaly about each one. I don't really have a problem with gay lesbian bisexual or straight people. So I don't really care if I am Bisexual or not. So do you think i'm bisexual or do you think that I'm just Bi-curous? Please help me! Thanks.