Sacrificing Kids Even!
Often when a person sacrifices her or (most likely) his marriage for love, he (she) also sacrifices his children – just leaves the family for the sake of being with another person.
Such situations and decisions are indeed immensely hard, and opinions on them are very controversial. Leaving one's family, leaving a wife/husband and even children for another love (which is unstable and too fresh to be reliable yet) is crazy, it's a pure betrayal of people who you are responsible for.
On the other hand, where is the sense of living with a person you no longer love? Why live with someone you don't want to live with when you have found a person who gave you true feelings? You know you will pay the price someday but you just don't want to torture yourself and others with inability to preserve your marriage. These things happen occasionally no matter how unfair and disgusting they are regarding the betrayed side of all those sacrifices – abandoned spouse and kids.
Even some women abandon their kids and husbands for their new love, they just can't resist the temptation of reviving their long lost feelings, the ones that they thought had gone up in smoke but then they just light up like thousands of fireworks. As a rule the finger of blame is quite uncertain regarding the direction of turning itself and always turns up on itself and confuses everyone around with the crash and burn of an old love and a new one being settled on the remnants of the past.
Sacrificing children is unforgivable even though the sacrifice is made for love. On the other hand, dedicating your life to kids is uneasy when you love a person deeply and passionately and this person is not the father/mother of your kids...