Is this going too far - should I not go there?

I, as a girl, would say to go for it and tell her how you feel. If she already kinda knows anyways then whats the difference? You need to officially put it all out there on the line so she can make a decision as to who she wants to be with. If she picks you, then it was all worth it. And if she doesnt, then at least you know that you did everything you could and you did not hold back and you got the courage to tell her how you feel. I mean, the only thing worse than being rejected is to hold back your feelings because it will just drive you crazy and you will always be thinking what if?. I know this is kind of corny but the saying is true - she can't fall for you if you're not there to catch her. So tell her how you feel!! Good luck to you :)