So if those ads posted on 3/16/2013 are from the previous owner, and on 4/9/2013 you found he was missing, how did you develop sucks bond with that horse that he knows your voice and is calling to you over a cell phone? You must have had the horse somewhere before the supposed hospital visit. Why couldn't the boyfriend mind the horse there? He couldn't have needed such high quality care - after all you left him with someone who you say doesn't know a thing about horses. He could have stayed where he was and if the boyfriend would visit him everyday, he could drop hay and fill some buckets.
In less than 48 hours you went from not knowing where he was to miraculously found? Someone paid $5k for a grade horse and just handed him right over to you without a fuss and just waved by to her money?