You and Abby got in a argument because you needed space from her. You both argue for a few minutes until...

Abby: JUST STOP SAYING YOU NEED SOME SPACE! I'M TIRED OF YOU SAYING THAT! I JUST WISH YOU WERE DEAD!

Abby realizes what she said. You were shocked and saddened when she said that. You ran off crying outside. Tac and Lucian couldn't believe Abby said that to you