Oh - another thing Chuck/some other resources made me realize...what is she giving him that you aren't? I wasn't appreciating my H (he was being crappy to me, but I can't "change" him without changing how we interact, can I)?
Well, I started making small comments when he looked nice, I made sure to thank him and notice when he did things for us, I really listened when he talked. You're not pursuing him, but you are treating him "like a stranger". If some acquaintance or coworker took out the trash, made a great sale, brought you coffee, held a door, or had a nice new suit or haircut, you'd probably make some polite, nice comment...makes them more likely to reciprocate.
That helped me to be positive, because it just improved the mood when he was around without me being weak or clingy or insanely mad/jealous.
Faith is, at one and the same time, absolutely necessary and altogether impossible. --Stanislaw Lem