IDK. Lisud pud baya musalig balik once your trust in your partner is broken. But sakto man ng know the reason sa ngano to niya nabuhat, wa ka kahibaw na naa diay valid reason though murag medyo labo na naay valid reason hehe. And for some couples, infidelity has become past issue but they were also able to overcome it. I guess it depends mostly on your relationship and the reason why it happened.