I missed this comment of yours! :D Actually, I've written another series of Snarry infidelity ficlets where Snape cheats on Harry and suffers for it. It's one storyline, a variant on this (or rather, this is a variant on that one), and though I've got one more part to write on it, I think it follows a more traditional path in which one reaps what one sows...it's here, if you're interested (though I know infidelity isn't your favorite!). :) Note that the link takes you to LJ, and that there is some non-worksafe art on the post.