If your best friend conceal some personal things from you?....

LunaDEJ

I will choose not to ask and pretend that i don't know.Because everyone needs to keep their own privacies deep in themselves.If their privacies are not about me which means that those secrets are not aiming at me,i won't probe them owing to avoiding some unnecessary hurt and discredit.
Furthermore,as a rule,it is not polite to ask others' privacies notwithstanding they are our friends.

LunaDEJ

monkeylinstar: don't you feel hurt when you find your best friend conceal sth.? would you lile to share everything with your best friend?

I think it is ok to remain a kind of sense of "mystery" between my friend and me.That will reinforce our friendship^^(Personal opinion,just for reference)