Having an issue with my 5 yr old gelding. Only had him a few months and he's gotten very attached to my mare. Today I took her out for about a half hour and he neighed the whole time and worked himself into a lather. She could have cared less to a degree but it did distract her enough to annoy me. Any ideas of how to help him chill out about her? Does adding a third wheel help? He's not trained under saddle yet and I don't want this to be an issue.