The problem I see here is that you view her as being “perfect” and that you have became desperate for her. If she was perfect for you, then the other guy wouldn’t be in the equation. You are seeing her for more than what she is worth, and you’re fooling yourself. You need to accept the fact that she isn’t “perfect” and that effort needs to be put in if you want her that bad, despite how you make it sound like she’s your soul-mate by that first moment being very “different.”

I can’t tell you what you should do because I don’t know the small details of this, but I will tell you what I would do. I would move on and find someone else. I wouldn’t wait because that’s like you’re hoping for her relationship to not work out, and this hope would make you even more desperate for it to become a reality. Also, by waiting for this person, this might be in your way of seeing other people.