You and Kagome are best friends. Recently, she and her boyfriend broke up. She wanted to make him jealous, so you two decided to fake date.

"Agh. This isn't convincing enough. We need to... Fake an argument! Yes! Then he'll realize that I've moved and and he'll miss me!"

So that's what you two did. Fake a fight in front of him. "-so SHUT IT YOU BIG MOUTHED BITCH AND YOUR STUPID SNEAKERS!" she yelled at you, albiet, dramatically.