Things that will remain unsaid

"There are things you should know
The distance between us seems to grow
But you're holding on strong
Oh how hard it is to let go, oh so hard to let go"

There are things that we wish we could have said, but we cannot; things that are destined to remain unsaid; things that we will take into our grave or at least we try to. But how strong do we need to be as not to express them? How easy is this? How painful it can be?

And I wonder how honest is this? For how long can we pretend being something that we are not. Sometimes it seems that we have no other choice 'cause if we show our true self everything will collapse. And this is a great dilemma. Losing what you love the most or hurting every day being someone else?