love.

Main Entry: rec·i·proc·i·ty 

Pronunciation: \ˌre-sə-ˈprä-s(ə-)tē\

Function: noun

Inflected Form(s): plural rec·i·proc·i·ties

Date: 1766

1 : the quality or state of being reciprocal : mutual dependence, action, or influence

What a lovely day when I find out my latte loves me back.