Tell em now. If you really love em and want to be together later on, then say it. Tell em the Gospel today - bestow it. Sure, if you like em, then let em know It, for many can't read It later when they're dead. (Kinda reminds me of a poem..).

Do it Now

If with pleasure you are viewing any work a man is doing,

If you like him or you love him, tell him now;

Don't withhold your approbation till the parson makes oration

And he lies with snowy lilies on his brow;

No matter how you shout it he won't really care about it;

He won't know how many teardrops you have shed;

If you think some praise is due him now's the time to slip it to him,

For he cannot read his tombstone when he's dead.

More than fame and more than money is the comment kind and sunny

And the hearty, warm approval of a friend.

For it gives to life a savor, and it makes you stronger, braver,

And it gives you heart and spirit to the end;

If he earns your praise - bestow it; if you like him let him know it;

Let the words of true encouragement be said;

Do not wait till life is over and he's underneath the clover,

For he cannot read his tombstone when he's dead. 

~ B. Braley