Leonardo, Raphael, Michelangelo, Raphael, April, Casey, Shredder, The Kraang, and Master Splinter are all yanderes for you

The Kraang and Shredder are the enemies of the turtles and anyone related to them in anyway, the antagonists

You're April's and Casey's friend from high school. You're hanging out with April and Casey, you haven't met the turtles yet, you don't even know about the turtles. It's probably best for it to be like that, as April and Casey obsessively cling to you