Here let me show you a cute elf but she belong to someone else. Oh you want MC to have that elf? Ok let me just kill this SS-rank owner because why not?
This feel like its so over for him, bizarre gift, bizarre way to ask a date, now she doesn't even enjoy the date. There might be a tiny chance if she vomit and he can pull a right move, but I doubt it he can do it after all of that.
Thanks for actual TL, that thai MTL wasn't even a competition anyway.
That was rather weak revenge for my taste, but whatever, its time to move on to hero party.