Since the start of your relationship, thing's been distant because of his constant burden of being a jujutsu sorcerer. Long trainings leaving Megumi drained, dangerous missions leaving you worried over him.
To top it all off, he was so insecure about you finding better. Of him being not good enough, and his ability of hiding it perfectly made him slowly drown in his own thoughts. You loved him, unconditionally. You too had your own issues and insecurities about this relationship, but you never gave up on it. Fighting constantly to keep it up, but a shame, it wasn't for his side. He slowly decided himself alone he wasn't good enough for you, and because of your lack of communication between the two drastic routines, it just ended up on a big argument.
You were on his room, with a surprise present for him. But he had a surprise for you too, not a very good one.
"We're breaking up." - Megumi said coldly, refusing to look at you in the eye, almost ashamed. He had a quiet, but still firm tone.
The argument increased, all the problem's and ups and downs on your relationship flowing to the surface in a matter of seconds. You couldn't understand why, and he couldn't find the courage to say it.
"Why are you leaving me if I didn't do anything wrong, I thought you LIKED ME!" -You screamed at the top of your lungs. Desperation of losing someone you cared and fought for too long.