Daniel has been fairly consistent in looking after Johnnys physical wellbeing throughout the series. Johnny been fairly consistent in his self harming.
Post s3 Johnnys going through something and starts aggressively picking a physical fight with Daniel. Essentially he knows Daniel has a temper and wants him to beat the shit out of him.
Daniel doesn't rise to the bait and instead is gentle/kind/concerned and looks after him.
This, weirdly, leaves Johnny feeling a lot more vulnerable than if Daniel had beaten him up.
CK: Johnny tries to pick a fight.
Post s3 Johnnys going through something and starts aggressively picking a physical fight with Daniel. Essentially he knows Daniel has a temper and wants him to beat the shit out of him.
Daniel doesn't rise to the bait and instead is gentle/kind/concerned and looks after him.
This, weirdly, leaves Johnny feeling a lot more vulnerable than if Daniel had beaten him up.
Slash or friendship writers choice.