When we tackle obstacles, we find hidden reserves of courage and resilience we did not know we had. And it is only when we are faced with failure do we realise that these resources were always there within us. We only need to find them and move on with our lives.
Do you want to be a gentleman, to spite her or to gain her over? Because, if it is to spite her, I should think - but you know best - that might be better and more independently done by caring nothing for her words. And if it is to gain her over, I should think - but you know best - she was not worth gaining over.