>If you consider this fact, would you still go through with it?

yes.

>I've had romantic feelings towards almost every girl who has ever shown some interest in me.

i thought you never knew any other girls.

this is all normal, you're just a little stunted. nothing good will come out of pining away for this girl while you hang out as "just friends". even if things don't work out romatically, or if she isn't interested or ready to go there yet, you can remain friends. don't try to pussy out of this.