I don't know, maybe this is just me but when I'm stressed out I only wanna get the shit beat outta me worse... When I'm freaking out I want to be bloodied up more than ever... of course... poor me hasn't ever been in a dom/sub relationship yet cause I haven't met that kind of girl, but i do know when I want to submit (All the time) and when I really really want to submit (When I'm stressed out)... I don't know... everyone's different, but if I were stressed out like him I probably would want to worship my mistress just as much or more. Talk to him- maybe it is what he says it is... maybe it's worse.
Good luck.