This dream may not have anything to do with the act of marriage it could also be about your real father or God himself speaking to you about a covenant or agreement. The dream takes place in your house, it speaks of your heart or condition of your soul. Specifically in the living room which speaks of social relationships or social personal situations. The paper he showed you already said MARRIED, but HE wrote DIVORCE, as if you were married and are now getting divorce. Marriage is a covenant or an agreement and divorce is the brakeage of it or simply not honoring it or carrying it out all the way through.
Maybe this dream is speaking to you about something you promised or agreed to do but are now failing to fulfill and you are getting a reminder.