What happen in act 5 scene 2

As we can see a lot of things happen in the book, love, hate, death, truth and lies. I'm going to share you a little bit of the quote from act 5 scene 2. " It is the cause, it is the cause, my soul. Let me not name it to you, you chaste stars, it is the cause. Yet i'll not shed blood, nor scar that whiter skin of hers than snow and smooth as monumental alabaster. Yet she most die, else she'll betray more men. put out the light, and then put out the light". What the quote is mostly talking about is that Othello does not want to kill Desdemona but he have to or else Desdemona will cheat on other men. Othello also said that he won't leave a scar or a drop of blood so he kills her with a pillow instead. In the quote Othello said "put out the light, and then put out the light". What he said was that he will turn off the candle and then kill Desdemona.