
Quoting
Florida Statutes § 741.28(3)
"Family or household member" means spouses, former spouses, persons related by blood or marriage, persons who are presently residing together as if a family or who have resided together in the past as if a family, and persons who are parents of a child in common regardless of whether they have been married. With the exception of persons who have a child in common, the family or household members must be currently residing or have in the past resided together in the same single dwelling unit.