When people commonly speak of fetishes, they're referring to what's known in psychiatry as "fetishism." One example is the underwear fetish. At what point is this considered an illness?!
Since it's causing problems 
in this couple's married life,
Weil es Probleme im
Eheleben der beiden verursacht,
Si eso ocurre, su relación 
como pareja está en problemas,
Si ocurriese eso, su relación 
como pareja tendría problemas,
Dans ce cas, il y a un problème
dans la vie de couple,
Dato che causa dei problemi per la vita 
matrimoniale di questa coppia,
Como isso causa problema na vida deste casal,