when is it not enough?

how do you really put emotions into words.  how to you really tell someone how you really feel?  explain just what it is that you have inside you.

take love for instance.  if the ability to physically express love to someone was put on hold, how does one let the other person know that they truly love them.  a way so that they would understand.  are the words "i love you" enough?  especially when you're not able to hug, kiss, or even cuddle with someone?  is "i love you" enough to keep the person interested?  i'd like to hope so.  i'd like to think that the emotion in the sound of my voice would be enough to convey the heartfelt feelings i have.

but sometimes, i'm left to wonder.  maybe they're not.  maybe i'm lying to myself.  maybe thats not enough to keep someone holding on.  i just wish i could have that reassurance that i'm not wrong.