Complex sentence: However, much to his relief, the single women are now falling for Kirk, because he is a "criminal", much to Kirk's delight; the two men eventually decide to keep it a secret, already knowing the lie has brought happiness.
Split into simpler sentences: However, much to his relief, the single women are now falling for Kirk, because he is a "criminal". The two men decide to keep it a secret, already knowing the lie has brought happiness.