I went through a similar experiance years ago, and I can only say that it wasn't meant to be and something else will come knockin on your door soon enough.
Years ago I had approached my then instructor to buy a horse... I offered far more than he was worth but I loved him to pieces. I was laid up at home for a few weeks with a severe eye infection and in the time I was away she had sold him to childrens camp. I was heart broken, and soon parted with that instructor as I felt so betrayed. Looking back, it gave me enough drive to travel the world, and made me a better, stronger person. I don't know where I would be now if I had gone ahead and bought that horse.. but it def isn't where I am now.
Look towards the future, and try to stay positive.
Stop for a minute, open your mind, learn. You may not agree with what I say, I may not agree with what you say but we will both learn something new.