Seems to be..

You don''t have to show you're happy- They won't get why.

You don't have to show you're sad- They won't understand.

You don't have to impress- They won't notice.

You don't have to relly on them- They can't carry you.

You don't have to care- They will push you away.

You don't have to feel betrayed- They were never there to begin with.

I don't have to all this anymore- because they don''t matter anymore.