假装温柔杯欢离合
[jiă zhuāng wēn róu bēi huān lí hé]
It seems that this nickname might include some characters accidentally mixed up or input incorrectly. Presumably intended as '假装温柔悲欢离合'(Pretending to be gentle through joys and sorrows), it implies that the person may pretend to be mild-mannered but has experienced much happiness and sorrow inside and remains strong.