BtVS – No Spoilers, Late Season 4, perhaps - Buffy/Spike.
Milk of Demon Kindness
Her regular patrol route carried her past Willy’s Alibi Room. You never knew what you’d find in and around a demon bar. Tonight she’d heard the low guttural moan of a being in pain and went to investigate.
She found Spike, bruised and bloodied – nearly out cold. Debating as to whether to stake him and put him out of their respective miseries or walk away, she heard Willy call out to her.
“This is all your fault, Slayer. It’s what he gets for helping you. My patrons don’t take kindly to traitors.”
She carried him to safety without another word.