How to win a straight girl?

okayyy so for all us bi nd homo ppl we all know the curse of falling for a straight girl >< recently i've realized i've fallen for my korean best friend which is a straight or an in denial bi girl. I only think she's bi because: 1. We share very long hugs 2. We hold hands when we/i walk (her) to class 3. She gets very embarrassed if I/she kisses her/me on the cheek nd she ALWAYS denies that she's bi even though we all agree that she is just in denial. I've tried really hard to supress my feelings for her by ignoring her, avoiding her, nd not letting have an physical contact w/ me but she ends up getting pissed at me so i hafta be normal again w/ her. But when she touches me i get really nervous nd hot. Plus if i text her something cheesyyy she never replies back i've asked her other best friend about it nd she said she thinks because she's in denial. I really like her nd i see her everyday. So any suggestions on how i can awaken her bi side?