My boyfriend's cat

As i woke up in the morning, My boyfriend’s cat Entered in the room; She did not know me well yet. So I kept calling at her To come nearby As I was laying; Reluctant in the beginning. Finally she gave in And hopped in the bed; She came nearby And with her chin Touched my face, And kept on rubbing my cheek; «This is the code of this little alien to say hi!» I said to myself; «Why does she do it?» I often wonder about these things; Later on, we went away from his house. As he accompanied me to my work; When we were separating, I went nearby my lover, And with my face Touched his face; All of a sudden I was reminded of the little alien Of the morning; I am doing the same thing. And yes, it is not helping me, To understand: Why? or How? Silently I headed on towards my workplace;