Unfortunately time management is an issue in poly relationships. There isn't much to do but get on with your own stuff and make sure you have regualr time together. If they live together then it just stands to reason they would be around each other more. Thing is, you get to be the fun stuff in life. They deal with bills, cleaning etc and you get to be the play and fun ( depending on what your BDSM dynamic is of course). Realaly though its a matter of being occupied in your life and available when they are.
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