Comment by minjeong on Her Tale of Shim Chong - Chapter 41

You're asking why? Why she keeps coming back to her despite being the reason for her upcoming death?

Perhaps it's because love is a drug. Addicting. Life consuming. You keep coming back for more to the point of no return.

Love is a poison. It feels so good that it hurts. It feels so good when you know it's wrong. 

Love is pain.