PLEASE ADVICE SHOULD I KILL THEM?

I saw two Cockroaches having sex. I wanted to spray insecticide and kill them,  a thought came to me, what if the male cockroach had been chasing her for years, and she has been eating all
his money without allowing him to get down there, I'm a human I have a good heart, and after all I am a man so I decided let him enjoy. ..
But again somthing came to my mind, what if he was raping her .....am confused

Please advice me on What to do