Maybe its a sign you should talk to him/her

no longer have her number, and i doubt she'd want to talk to me considering the fight me and her had

Fights can be pretty nasty, but if you're heartfelt in your apology (If thats what you're doing) Sometimes people can be pretty forgiving. I know this first hand.

it was more huff and puff honestly. We fought over text messaging. I wanted an apology for her leading me on, and I should have also asked for an apology for friendzoning me

Honestly is that really worth a friendship? It's ABSOLUTELY not the worst thing that can happen to you. Someone I knew, (I wont mention names) was with a guy whom she had known her entire life. They were finally dating after years of him wanting to be with her and being overlooked. And then 6 months into it she ended up sleeping with another guy and getting pregnant, and then lying about it.

And through all that he still wants to be her friend. So friendzoning is not half as bad.

If you want advice from someone who's been and done time again just try talking to her. (You mentioned not having her number anymore. Try email or asking a mutual friend.)
If you state your case and find it just not worth your time then drop it. Let her live her life and you do the same.