Ethan, who also has daughter Maya, 15, and son, Levon, 12, with ex-wife Uma Thurman, previously admitted he doesn’t believe in monogamy even though he has been happily married to Ryan since 2008. He said: ”My relationship with my present wife is thrilling to me and I’m committed to it. But neither she nor I know what shape the future will come in. Sexual fidelity can’t be the whole thing you hang your relationship on. If you really love somebody you want them to grow, but you don’t get to define how that happens. They do.”