Board Thread:General Discussion/@comment-26487118-20150611165357/@comment-4682609-20150611175748

Shredder always consider Karai as his trophy, human or mutant. If Karai turns against him permenantly, he'll think Splinter took her from him like he took Tang Shen.

Speaking of which, she may have married Splinter, but I think she used to like Shredder as well when they were all still friends.