"I know" he says uncomfortably.

"NO you don't" she shouts at him "You always say you do but you don't" He just looks at her  as she continues "Can't you say anything else besides 'I know'? What is it exactly that you know?"

"I know that..." he stands up and picks up his coat "... you will be lonely too if you loved me..." walks towards her and whispers in her ear ".... the way I love you!!" and leaves the house.