I definately think getting an unbroke horse was a mistake, but I also think we could still do it. Persia is smart and willing and we have done so much with her this far. The drive just isn't there for my husband right now and I can't do it on my own. We have a trainer that is supposed to work with both of our horses this spring so I'm trying to hold him off until then. But if his attitude doesn't change, it's just not worth it.
I love Sport, he's a very handsome boy.
Here is the problem though. This is still about what YOU want, not what HE wants, and this horse was supposed to be for him. You'd be better off selling her and finding something suitable down the line, IF you are even able to peak his interest again.
Getting an unbroke, young horse that needed so much work, when he was JUST STARTING to be interested in horses was probably the quickest thing you could do to turn OFF that interest. You needed to show him it was fun, but all he saw was that it was difficult, and a ton of work, so of course he doesn't want anything to do with it now. And now add to that that he's going to have to shell out money for a trainer, to train the horse you both were overfaced with, so that will drive the point in a little deeper, and turn him off even more.
I'm sorry if that sounds blunt, but it seems to me that you tried to force this on him, and even now that it's ending badly, you don't want to admit it. As impossible as it seems to us horse people, not everyone likes horses, or wants to spend time working with them. All you are going to accomplish if you keep pushing, is to build up a lot of resentment between you, and I would think your relationship should be worth more than keeping a horse, especially when you have your own, that is not part of the problem.