Very jealous horse ? (20 character)?

You need to start as you mean to go on. Fussing round the jealous horse, giving him exta treats will make things worse horses are very cleaver. I'm not saying don't spend time with it or give it just don't make an extra fuss of it. Maybe you could go out on little rides though as he could be acting like this as not getting as much exercise as your riding the new horse more