Does divorce occur between a couple if the husband jokingly and laughingly says to his wife: "Will you bring the ma'dhun to divorce you?", then the wife replies: "You are not a husband to me"?

The divorce does not take effect due to what you said and did towards the manager, because it does not explicitly attribute divorce to your wife, nor does it use an indirect expression (kinayah) with the intention of divorce. Divorce only occurs with an explicit verbal declaration attributed to the wife, or with an indirect expression (kinayah) accompanied by the intention of divorce. We advise you to avoid such obsessive thoughts.