Is betraying commitment in a relationship an unforgivable act in your opinion?

It is to me, I believe in second chances but some things just don't deserve second chances, I believe some things just show depth in character and can change a perspective on how you view someone to the point that no matter how many chances you give that person, there's nothing to change the way you see them.
Is betraying commitment in a relationship an unforgivable act in your opinion?
Post Opinion