No. Its not too late.
Since the two of them are not together yet, you still stand a
chance~
After all, getting along well do not mean they can be in a
boyfriend-girlfriend relationship.
Try and get to know her better, or else there will be a void in
your heart, all the "What if's ..."
"What if i had gone to know her.. what will happen then?"
Go for it, at the worst you end up with a new friend~