It was after she said those words that Yumeko realized that Ari-chan was still there. The two of them still weren't on good terms again, but Yumeko longed stopped holding a grudge. After she lashed out on her. Yumeko immediately regretted it and wanted to apologize so many times. What she is saying to Maika now, at least the second halt about being selfish can refer to the fight she had with Ari-chan.
Before Yumeko could get any words out; however, she, Ruka-chan and Maika-chan get called up. Yumeko looked towards Ari-chan, and their gaze met. The two of them still weren't on friendly terms, and yet Yumeko could see it in her eyes, 'good luck.' A silent prayer.
..
