someone who is duplicitous or disloyal, particularly in romantic relationships

धोखा देने वाला

English Usage: He was known to be a two-timer, always cheating on his partners.

Hindi Usage: वह धोखा देने वाला था, हमेशा अपनी पार्टनर्स के साथ बेवफा रहता था।

indicating something happened on two separate occasions

दो बार

English Usage: She called me two times yesterday.

Hindi Usage: उसने मुझे कल दो बार फोन किया।