Gabriel,
I have found that if I "test" God kind of like you did by asking for a specific "sign", I am usually disappointed by a lack of answer. I don't think He works in that kind of way in this day and age. I am sure that God does not hate you - He just decided not to answer your request. I also have terrifying nightmares - sometimes we are given a thorn in the flesh to live with, and we won't know why until very much later. I'm still struggling with my "listening" but I hope you will not give up.
Hugs,
SW