No, then an already troubled relationship was met with a temptation that it never really had the strength to resist anyway. Your significant other, instead of ending your weakened bond as he should have prior to said temptation, decided to be unfaithful. This ‘slut’ was probably innocently unaware, and even if she wasn’t, her sexual activities are none of your business. Either other way, you should be thankful that she came along. Lest you spend the rest of your life with an adulterous suitor who obviously doesn’t love you. 🙂
Ignorance is not bliss, ladies. If you’re of this opinion: how about we stop blaming the other woman, and take a long hard look at our man.