I'm not married, but I put that we would split them up accordingly. When I moved out of my mom's, I left my cat, Caleb. He was mine originally, but my mom wanted him and loved him more so I let her have him. I doubt I could ever part with my dogs that I originally bring in, but they are my babies -- my cats are always more like roomates lol. If I know they will be happier somewhere else, I will be sad but let them go.