You were supposed to fight Scar, not run from him

But here you are, running from him for whatever reason. It should be stupid, really. But things happen.

You finally were able to hide, breathing heavily as you tried catching your breath. You could hear his footsteps, he was getting closer.

Scar walked near your hiding spot, a wide smirk on his face as he glanced around. "Come on, doll, this shouldn't be that hard, right?~" He chuckled.

After a few minutes of searching, he got a bit annoyed. Then, his smirk came back, having an idea. He turns around, starting to sing.

"Run baby run, run for your life, I'mma tear out your heart, it'll always be mine~"

What did he mean by that?

(Based on the song RUNRUNRUN by Dutch Melrose)