Horses are herd animals. They do much better with other horse company then without. The lip roll is your horses way of scenting. Sometimes when they are testing the wind, they will lift up their lip. Some horse never do it. The head shake and open mouth is just that. Horse behavior, he may like the candy, and is saying so. As you have you horse longer, you will learn more on how he communicates. As far as bringing in a companion. As I said I am all for that. Just introduce them slowly and keep a fence between them. If he is too overly friendly, she may back up and feel he is too pushy. He may run from her. Just watch them carefully and give them time to get to know each other. They should be okay, and some times, just like kids, they will go back and forth until they settle down. The food issue concerns me. Losing weight is not a good thing. Often when horse stop eating grain but still eat hay, they have problems with their teeth and they need to be floated. The is absolutely necessary for older horses, as their teeth still grow and if they are not meeting properly, the horse does not get any nurtition from his food. This will be obvious from undigested oats and grains in his manure. Also he could have worms, bots, etc. Some times horses stop eating because they are depressed and lonely. Sometimes they are bored.I think a companion would be a good thing. Please watch his food intact. If his weight starts to come off again, have a Vet check his teeth and make sure he's in good health. Check his legs and flanks for any signs of swelling, or is his posture changes.(stands on his toes or heels). Good luck!

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