Ye Qingdie held a special place in Xu Mo's heart. The first time they met, Xu Mo had looked where he shouldn't have and got a thorough beating for it.
Of course, Xu Mo liked Ye Qingdie, who was beautiful, sexy, and always took care of him. However, after going through so much together, Xu Mo saw her not only as a romantic interest but also as family. For that reason, although he always had ulterior motives, he remained cautious, afraid of hurting her because he couldn't make promises about the future.
Especially after Zero appeared, this was even more the case, so Xu Mo dared not cross that line.
But now, after five or six years had passed, Ye Qingdie still had no other thoughts. Wherever he went, she followed. Xu Mo couldn't just send her away. He understood Sister Butterfly's feelings; she would probably always stay with him, even if it meant being alone. She didn't seek status, only to stay by his side.