Spoiler (or maybe not?)
They already shot the ending but they didn't included it in the last episode (They cut it out). This is how it was supposed to go:
HyungMin’s car, coming from far away. Parks next to a car that has already been parked.
HyungMin gets out of the car and walks toward…the door opens ShiHyun gets out of the car with one arm bandanged
HM: As you requested, Min Hong Ki died by Doctor’s Son. I’m Sorry
SH: No…Thank You.
HM: (Smiling) Lee Jin Sook, SooMin..Everyone knows that you killed him.
SH: (Hurt)
HM: Do you have to leave?
SH: If I stay…Both of them will not be able to be happy.
HyungMin, gives a plane ticket and passport to ShiHyun
HM: Passport. Ticket…
SH: (Receives and holds onto them)
HM: Do not worry. Your name, age, it is all changed.
SH: The new name…(smiles) Jung Hyun Soo…Thank You.
HM: Are you not going to come back?
SH: …Be well. Ji Hyung Min.
HM: …
SH: …
When HM has his hand out for a handshake SH shakes hands after switching to his left hand, due to the bandaged hand
Both get in their cars. From far away a plane is seen departing into the sky.
Personally; I like the last three seconds ending better. At least it doesn't feel so awkward that way.