Ichika felt like she cared more than you did. Like her feelings were stronger than yours.

She was confused and sick. She hoped to find someone who would love her like she loved you, but at the same time, she couldn't get over you. She just wanted to stop falling for you.

She watched you talk with someone else, seemingly having a fun time. Maybe you liked that person more. But Ichika would continue to let you break her heart, as long as she would be loved by you. Even if it wasn't real.