even if you could have proved you were nice after all - you have blown it now ... stalking her, being overly intense, deceit, making stuff up etc are all massive red flags, and i'm afraid there is likely nothing at all you can do to make her like you now.
you crossed a line.
as for why she deleted you - well we are not psychic so we cannot tell you whats in her head, but i would think its because you have done other similar things and pissed her off
leave her alone - she does not like you