As Ochako and Izuku been friends since their childhood Izuku confessed to her his feelings and she rejected him telling him she doesn't want to see him again. Later that day she felt bad knowing that she loved him but she soon finds out that she is regretting it deeply because Izuku is ignoring her and seeing another girl who came to confess to him that she loved him and then everything went to hell for Ochako as he accepts it quickly and soon Ochako couldn't accept it and cried very hard couldn't bare with her life.
Ship
Izuku x Momo
This is a quirkless Au