Since this isn't the first post about this horse, I highly suggest hiring a trainer. It might be your only option besides selling him, and we never want to sell our babies!
He is obviously a handful and needs some good old fashioned basic training. The fact that you have no enclosed area is just making it that more dificult for you. It eliminates a lot of very helpful options. The mare may not have worked for just about any reason possible. He could have known a mare before so he gets excited around her.
Anyway, your horse more than likely isn't crazy, just green broke needing some patience, hard work, and basic work. Forcing him to do any work - even acceptin a saddle - isn't a good idea. This could make him even more hostile. If he isn't being responsive, there is something up. He is scared, or frustrated, or just doesn't know what to do. Take him back down to simple training - like he wasn't even trained before. If you don't, you will more than likely get seriously hurt if he continues to progress in the way he has.

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