I'm going to venture a guess and say you're young...as you don't say how old you are. Based on that assumption, you have your whole life to figure that out. If you like guys, great! If you have feelings for girls, great!
Give yourself some time, enjoy your youth, go out on dates with whomever you choose. Just remember, it's ok to be who you are, and if you're bisexual.....You are! Embrace yourself!
I think that what you call love isn't actually love but attraction! You are just so attracted to that girl and if you like boys then it isn't actually love!
And don't worry you're just 13 , enjoy your life, I didn't even came to know when I became 14 this 17th Sep! So just enjoy you won't even come to know when you're a grown up and that love with the girl , I think its just for sometime and not a permanent !
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