Jealousy in Coward

In Design For Living, Coward imagines 2 men in a sort of ongoing competition for 1 woman, and the ending suggests the competition will simply go on, not really in what is now conceived as the polyamorous way, since the men are not precisely content with the arrangement. In Blithe Spirit, 2 women compete for 1 man, and the results are humorously catastrophic. I'm not saying the writer changed his mind, but in the second play disaster was Designed.