The context of the following conversation is Today is a Valentine day.  Alex made a card for her boyfriend.:
Alex says Happy Valentines day Mike!.
The friend responds Happy Valentines day to you to Alex. I love you..
Alex responds I made you this Valentines card..
The friend responds Thank you.  I love it!.
Alex responds I knew you would.  You are my valentine..
The friend responds And you are my valentine, Alex I adore you..