I reckon when one finds a 'right' partner who is more considerate and more giving in a relationship, the other should not take it for granted and thinking it's an 'entitlement' to hurt and abuse the other. Unfortunately for him, he probably thought he could change her, by accommodating which sadly led to this tragedy. No one can change anyone only themselves. If you are in a relationship which saps your will and dignity away, please leave as early as possible, and not lose sight of your own life and purpose.