Sometimes a woman's love of being loved gets the better of her conscience, and though she is agonized at the thought of treating a man cruelly, she encourages him to love her while she doesn't love him at all. Then, when she sees him suffering, her remorse sets in, and she does what she can to repair the wrong.
It didn't make you noble to step away from something that wasn't working, even if you thought you were the reason for the malfunction. Especially then. It just made you a quitter. Because if you were the problem, chances were you could also be the solution. The only way to find out was to take another shot.