Who am talking to when I say I love you

I can feel some people like music
and they are saying no one love them
or she only love my money
he only using me for something
So I say I love you
They read it and they say I love you too
and I answer back with I love you 3 (as in I love you more or the the number of people I feel)
to let them know you don't have to know someone to love them