serial marrier
a person who gets married for food, shelter and companionship, and when it gets stale, time to find a new person to marry...
Eddie is a serial marrier, he's been divorced two weeks and he just bought a engagement ring for the lady he met at the bus stop.
Serial marrier
A person who has been married 3 or more times.
Lucas was worried he would become a serial marrier when he fell in love with a girl from Texas and contemplated making her wife #3.