Salaam,
In Islam, regarding marriage, you have two chances to remarry your spouse after a divorce is initiated. If a divorce is initiated for a third time, then this is irrevocable.
I think the reasons behind this is to highlight that the institution of marriage is sacred and should not be taken lightly, therefore the matter of divorce should not be taken lightly either.
A couple should seek arbitration with a view to resolve any disputes before the matter goes to divorce.