Hum . . . Although I have not been called to the bar in FLA., I am a lawyer. Why would he owe her a living?
He doesn't "owe" her a living, but if she has been a partner in said business, he can not just pretend like she isn't involved anymore. You can't just oust an equal partner because you're pissed at them.
Considering they were married, the business is both of theirs until a judge adjudicates otherwise.
Also, if they were incorporated of course, there is even more paperwork to dissolve a partnership. You can't just say, I am mad, so you can't get paid anymore.