Trying to make ethics "flexible" leads to moral relativism. For example, "little white lies... it's not bad as long as nobody gets hurt." This absolutely wrong! Truth is not relative and when you lie, you do hurt someone- yourself.
One thing you can always count on from me is the truth... you might not like it- or you might not like me... But I like myself and that's what really matters. All you have is your word, and if people know you lie (no matter how trivial the circumstances) it means nothing!
It's not that you have to lie. There is a simple rule: "Do not say, do not do and do not think about what you are not asked for." It is necessary to respect the desire or unwillingness of another to hear the truth. But what is the silence of truth? In fact - this is a lie. And what is the truth? Everyone has their own subjective truth, but the objective truth is one. Thanks for the comment! I respect your opinion and it's interesting to me!