My husband (active duty military) is a FL resident who is stationed in CA, where we live. Am i a FL resident or CA resident since he is technically dociled in FL?

Where you met your husband and where you got married? 

A nonmilitary spouse cannot just choose the service member’s state or “inherit” or “adopt” that state upon marriage.

At a minimum, the spouse must have lived in that service member’s resident state before “claiming” it as their own resident state for MSRRA qualifications. The spouse must also be able to prove residency by being registered to vote, maintaining a driver’s license, and any other residency requirements of that state.