Some people think that they provided commentary on actions and events that were taking place before the audience.
Secondly, the chorus would allow the playwright to create a kind of literary complexity only achievable by a literary device controlling the atmosphere and expectations of the audience.
Id say the answer to most of that question, is how approachable you look to the opposing person. everyone has their own preferences though you know?
He was kidnapped by his father's servant.
It gives the idea that love can be transformed and it can get hard but the concept is forever. The shape changes and color changes but it is still a rose.