Fastpaw and Myrtle, the "good end" version.
So here is the alternate ending in which he has a change of heart. this may become the new canon; maybe the other version was a might-have-been, or a flashback he had as he thought about eating her.
A King's Sorrow - Chapter I: Exile of The North.
"heh, why the sudden change of heart?" vyrin queried with a mocking smirk whilst his tail flapped behind him, slightly leaning himself into that heavy and warm paw. "am i not a craven anymore?"
Chapter 2: The Dorms
"i tell vektir that i didn't wanna talk about it, but he just kept pushing and pushing and eventually i went to leave and so he has a change of heart." she gave an exasperated sigh. "he didn't even try to hide it.
A Reason to Leave
"change of heart?"
A Little Crush, part 8
Why the change of heart?" "i'd like to meet this alistair fellow now that he's got a personality. he seems like a really good guy, lex. maybe a bit confused.
Months of Planning (A1, B11, C11)
Earlier, when you told me about pendleton, i had a change of heart. i felt like shit. i felt like i ... i'm a bad mother." conner groaned. "jesus, do we have to talk about this _now_? no offense, but this guy is still a threat."
Roen's Tale, Chapter 6
Why'd you have a change of heart?" i also look up at the smith, watching him work at the lock with his picks. "when the ones you love, make a sacrifice like ours have, we should do what we can to not disappoint them."
Seeonee 2 - Chapter 7
I trust bagheera's word on that you've had a change of heart, else you'd have been dead the second i lay eyes on you. but that does not mean that i trust you. you won't set paw in either of our dens."
HUNTED C1
It seemed she might have had a change of heart after all. "my brother, you knew him?" the rider nodded. "eldin was his name no?" that was all she needed to hear.
Lover's Endless Rivalry Chapter 3
Father had an official change of heart from that point on and began trying to become friendlier to his human and his pokémon allies.
Cruel Beginnings 3
Sensing that maybe he had finally had a change of heart, vaporeon allowed herself to enjoy his treatment. her sweet juices began flowing out of her pussy and he lapped them up eagerly with his tongue.
Training 4 Trouble
Demolition made his change of heart here so he knew full well this could be one of the trio's destinations.