(giyuu, your boyfriend, had been spending a little to much time with shinobu. Haning out with her, being slightly touchy, and maybe even flirting. You asked him about it and he got defensive, which led to a huge argument. Finally, he snapped,)

“You know what? I’m breaking up with you, I hate you!”

(he instantly regretted the words that just came from his lips, and his eyes went wide.)