Sometimes, in our attempt to prove ourselves to someone we do something we might not have done under normal circumstances. The other person might be momentarily satisfied with what we do, feel special. But, somewhere inside of us, we know we are not that which the other person liked. We, ourselves, can never be satisfied with what we did or what we pretended to be. Eventually, the other person would not appreciate it as well.
The changes we bring into ourselves, that which can stay with us for a long time, changes that are brought about for good are worth bringing about.
But, to pretend momentarily to be what you are not, would never bring you peace of mind in the long run. The run, that truly matters.