One of the things that I like about my spouse is that he likes women as human beings. I would probably feel a little jealous/insecure at first if he had a woman riding partner but I would also consider that my thing to deal with, because I would know it didn't mean anything beyond a riding partnership. And he might feel the same--a slight initial twinge, then he would remember that he knows who I love; and that would be an end to the worry.

It bothers me a little that people think their feelings of jealousy, even when they are without a basis in fact, should control the relationships and friendships their SOs are allowed to have. I guess everyone has different ideas of what's okay or good in a marriage. It's important to me to be married to someone who is able to love me without needing to control everything I do, and who is able to know that I love him.