Deep down you already know the answer (as we all do...) and you're just trying to convince yourself that it's not the case.
She's not that into you no matter how much you'd like it to be otherwise. Deal with it and move on.
Yeah I hear you and I can see why you might say that. The situation could be more complicated though (or maybe not). We seem to get along really well, we exchange gifts (she bought me something quite expensive- wish she hadnt), she is very interested in pursuing a relationship away from the office etc... Might just be that she has her eye on greater benefits IDK but maybe there is something more to it than that. I dont think I've ever been in this situation before.