A lady was dating a guy for two years, the guy cheated on her by sleeping with her friend. As a result they broke up. A year latter this guy and younger sister of the lady started dating unknown to the guy that is ex girl friend younger sister. After dating for a year, the guy went for introduction for marriage , only for the elder sister to find out it is the guy that she dated.
What would you do if you're this guy or this lady(ex girl friend)?