Brandi, you got off to a terrible start and to be honest, that doesn't happen that often to newbies. Newbies make some mistakes sure just like the rest of us, but what happend to you and Melody was just a run of really bad luck. It was like a dark cloud was following you and most of us here couldn't figure out why, with all the good care you give, it had to happen to you, but it just did and it wasn't your fault. None of it.
As for the other stuff, there is also that thing known as "personality conflicts"
It has happened twice in my life where I had a horse that for some reason I just did not click with and I really did try. Maybe too hard, I don't know. One was a quarter horse filly my X bought me for a wedding present and we did very well showing, but the "love" was not really there. The other was a mini,
a nice, well bred little girl that I never developed feelings for. She seemed to sometimes just push my buttons just to irratate me. Other times she did nothing wrong, but I just could not warm up with her. I just felt kinda "blank" or something around both of these horses and both were eventually sold to people that simply adored them. This is no crime. It happens and if you ask me, that is the best thing for not just the owner but the horses involved.
I don't know if this will make you feel any better, but I for one kept insisting every time you asked about a companion for Melody that she would do best with another of her own species. You kept wanting a goat and a cow. Well after I saw your video today of Melody, the goat, and the cow together, you sure did make a believer out of me. She seemed very happy out there with them and you could clearly tell she ruled the pasture. I just want to wish you the best of everything in all your decisions and I hope you can arrive at one that will make you happy.