Elections are to select the political leadership for the country, not to divide the country.
Whatever the outcome, it is the choice of Singaporeans unless there is fraud.
As such, Singaporeans who love the country will only shake hands, not mock or get angry with each other.
Those who will mock or get angry over the outcome should just leave the country.
PAP supporters who mock opposition supporters when the PAP win or Opposition supporters who mock PAP supporters when the opposition win more seats... we are better off without such people.