If you give a food to a tamed horse, you suddenly look towards to where the horse's looking

What i attended to do was:
1. Play Minecraft
2. Open My survival world
3. Feed my horse before go mining
4.Ride the horse and go mining

And what i get was:
1. Play Minecraft
2. Open My survival world
3. Feed my horse before go mining
4.Every time i clicked him, my head turn to where he's looking
5. Get confused and then not mining and exit the game