My question involves small claims court in the state of: California

I sued a spammer from Southern California (I am in northern CA and the case was filed and heard here).

I lost and now the spammer is threatening to file in LA for lost wages, transportation and housing etc for the time spent coming up to defend.

My question: A.) I thought you can't sue for those things even if you win;

and B.) won't they have to file in NorCal since that is where the "damage" occurred?