[quote=@hatakekuro]
<Snipped quote by Silver Fox>

He most likely would dislike her for using Karn's body.
[/quote]

Well technically she doesn't have much of a choice as she was shoved in there.

Now if he heard that she would take it if Karn wasn't going to want it anymore and time was running out, then he understandably has a reason cause at that point, she pretty much willingly takes over his soul and life xD