You can still become her friend, it's better than nothing. You can't force her to love to you, that's a fact not an opinion because love is an emotion you feel; would you like it if someone tried forcing you to love them? I'm pretty sure you wouldn't, and I can say for sure it's very frustrating when someone does; they're only setting themselves up for heartbreak and basically shooting themselves in the foot.
As others stated, she's not a prize to be won she's a human being with human feelings. Try to keep in mind that she can choose whether or not she wants a relationship with whoever wants one with her and she has a right to say no.
Think of this as a life experiance, just as break-ups and getting into a relationship is.
Seriously, don't become one of those assholes who force their feelings onto who they want. It's not the way to go and she'll resent you.