I Think I'm Bisexual?

I Think I'm Bisexual?

I have Always Been Straight . And Recently this year there was a new student in the school . We're in Middle school And She Would be Soo freakin hawt as a boy too XD Anyways Back to the story . She is very very flirty to girls and hugs them all the time including me .She doesn't show much to the boys and Also Acts Like a Boy sometimes . There were rumors saying she's Bisexual but I didn't believe it . But Then her hugging and holding hands and stuff that only couples do together arelook like me its true . and It Is . She Would Hug me from behind and I would always get a chill down my spine . Sometimes She Hugs Me Directly and I Feel Really Hot . She even One time Blew Very Gently on My Neck and That Really Really Made me feel weird . When I heard she liked my friend , I Don't Know But I just got this sad Feelings and Broken Feeling . And I NEVER felt this way towards a girl . Today I Also Heard She Kissed My Other friend on the cheek and that made me heart burn .a few classes later , my friend zapped me to hug her and ask her to marry me (Of course its fake) and when I called her name and went up to her , She was Hugging the Girl She Liked (My Other Friend) and I Just Immediately Turned around and said "Ugh Sorry .." And Left . I Had a Sad Expression and My Friend Asked me , "Are you jealous ?" And I Was Like "WHAT ?! Why Would I Be ?! I'm Not Bi !" So She Replied , "You Look Like You Are " .

So My Question is , Am I Bisexual? Or just experiencing ?