Well, the coincidences or synchronicity made you feel for her, and your own feelings mean something to you. I'd say go with it, but don't overthink it. Don't like profess you undying love for her. Rather, try to get to know her more and hang out with her. Be cool though, and don't come off as needy or desperate.
One downside to this is she probably sees herself as a protector at this point, so that puts her in a kind of big sister role in relation to you, rather than a romantic potential. Just work on being confident and standing on your own feet. Don't be like a dick, but don't be a pushover either. Like if she teases you, don't be afraid to tease back. If someone pushes you into a locker, push back and tell them off. Don't let her do it for you. You gotta show that you're a dude with balls and that you can stand on your own feet.
Just don't overcompensate and be a douche bag though. That's what all bullies do. They're over-compensating, because they feel worthless, so they wanna bring others down to their level by making them feel worthless. If you feel like less of a person because of past instances of being bullied, don't. Bullies are pathetic, sad, immature people. What you gotta do is know you deserve happiness, cultivate it in yourself, and share it with others. I hope that helps bro. Good luck.
Oh, and if she has no interest for you when all is said and done, try to preserve the friendship, and keep building a strong foundation of confidence and contentment for yourself. Never quit working on that, because it'll only attract other girls and people in general you don't even know exist yet. Lift weights, read, play music, paint, meditate, play sports, whatever you want, and build your personal happiness from activities like that. It'll give you an outlet, and, perhaps, something interesting to talk about that you can build new relationships and such from.