A Glass of Water

I don’t know if it’s a translation error or not, but in the scene at the end when the Duchess and Bolingbroke kiss and then slap each other is very odd.   When I read it, it really surprised me.  I was not expecting that. They are at each other’s throats though out the whole play.  They are both scheming and plotting against each other and trying to discredit each other.  All of a sudden at the end they are kissing each other?  They are telling each other that they would have wed if they had known each other earlier.   That doesn't make sense, unless it was an attempt by the author to bring some comedy to the end of the production.   I would have guessed that they would have politely bowed to each other and left.  They could have said their lines while smiling, not meaning what they were saying and left without the kissing and slapping.  Of course, that may not have been as effective or funny.