In the Lucifer episode "Love Handles" (S02E12), Lucifer and Chloe investigate a mysterious masked killer who is poisoning college students. They also try to make sense of their new relationship after a long-awaited kiss.
Up to this point it is very clear what is happening, perhaps at the end of the episode Lucifer and Chloe kissed each other and that is completely normal and long awaited by all of us.
Chloe was not a victim of the mad scientist like the others, nor did she have contact with the poison solution, only with the antidote.
She also witnessed the suicide of the scientist but had no contact with him.
What caused this bleeding? What's even more confusing is that her bleeding is very similar to the symptoms of the poison the scientist used.
Why is Chloe bleeding at the end of the episode?