LOL! Former antagonists with blue-usernames unite! So much in common already! GOOD THING. I have my negative boy to offer. I will indeed. Kaiba will be actively plotting revenge on Blue and Iwa but... it'll be... fine. Probably.

Maybe it can! Look- it's possible. He gets semi-jealous of her hanging out with Ren so much and Ren is spoken for. Currently, this feeling has not been properly identified by the techno-nerd, but I'm calling it like it is. He certainly wouldn't get why the two are palling around so much, and be prone to snarking about it.