Thanks Scarlet Rose. I am giong to place Ruby in the bathroom. I know they will be lonesome without each other. Or I think they will.
I was holding Ruby and groomed her last nite. Cotton sat watching looking left out. I have been holding him more lately. HE is now letting me hold him and does tooth purrs.
But I am going to seperate them. I don’t want them getting seriously injured. I didn’t see any skin with hair around on the floor. I dont’ see or feel any bites on Ruby. Poor little Cotton. That is the only wound I am aware of.
So you consider the nose bite serious? Serious enuf to seperate.
Well I will just have to seperate then. I love them and don’t want any serious problems. They are grooming each other right now.
I haven’t noticed any herding. But Cotton did pee on the rug by his litterbox and poops scattered poops all over it. I am taking that as territorial poops and marking. I seldom see Ruby in that litterbox. I have plenty extra to put in the bathroom for Ruby.
I was real surprised that Cotton accepted Ruby and am glad he did. They are hanging out with each other all the time. Except when I am gone they are fighting. 
I tried to get him on his back at the sink there to wash his wound out with povidone iodine and he would not stop wiggling. Finally I just wrapped him in a towel. Then I got it. I am putting his Neosporin on now too. It doesn’t look infected and I will be checking it twice a day when I put the neosporin on it after washing it first.