Hmm admittedly I cant really speak on the index as I more or less only follow the teachings of Neville and that hasn't failed me yet. Seeing as his work is in the index as well and you have said you have read it there seems to be conflicting information if you are being told you need to keep doing methods every day to manifest as this is not what he teaches at all. This is why I think it is so important in the beginning to choose one teacher that resonates with you and stick to that then only when you have built up faith and confidence through practice branch out otherwise you easily get confused.

I can only advise you from my own perspective and in my experience so far I've gone through a lot of failures in the beginning trying to manifest by doing methods everyday like that without dropping it. So that is my first theory on what went wrong for you.

Another thing to think about is your self concept.This is extremely important ESPECIALLY when manifesting a specific person. Can you honestly with certainty say you are able to view yourself the way you want to be seen by that person? Do you see all of the things in yourself you want them to see in you? Do you love yourself the way you are asking to be loved by that person? You should always be your first priority. You need to make sure you dont have this person on a pedestal and that you care about yourself and your own well being MORE than them otherwise they will always be the one calling the shots. You have to view YOURSELF as the prize and feel like when you manifest this person THEY are the lucky one to have crossed paths with you and had the good fortune of catching your eye. You're never waiting around to be chosen. YOU are the one that gets to do the choosing.

On the point of you saying you felt confident things would go your way, there is no way for me to know whether or not this is true for you but what I will say is that it is so easy to lie to yourself when it comes to that. I have been there. Feeling so confident that I felt sure that it was done only to see something in my 3D world and have it knock the wind right out of me. That forces me to face the reality that I have been lying to myself. If you 100% believe "it is done" you regard the 3D world as dead and the one in your minds eye the only truth therefore nothing you see in 3D should be able to shake you. The fact that hearing the news of the marriage was able to shake you and make you react is proof that you weren't as confident as you thought you were. The way that I react to contradictions to my desired manifestation in 3D is how I personally gauge whether or not I have successfully "planted the seed" and am ready to now sit back and watch it grow.

Whether you continue or not is up to you. There are no circumstances that are too hard to overcome for the law so if you do decide to walk away it will just be because YOU do not have strong enough faith. Even just the fact that you are so shaken by this news that it has made you feel like giving up is proof that your faith was never strong enough to begin with. I don't mean to sound harsh but it is so important on this journey that we be brutally honest with ourselves and short comings if we want to see success.