Why do these tears taste so salty

Baby you know 
Im no martini drinker
Straight jack lil ice 
But now you're gone 
My tears taste of something 
Familiar 
Like olives you feed me 

Baby im blue 
Because of you
Taking my heart 
For the ride you did 

Now i cry in silence 
So why these tears 
Taste so salty

Frank Sinatra big band slide trombone horns drums make four minutes long