Mu Yiyi
I believe what is going on explains the concepts of some relationships.. The one person who is supposed to love and care for you will be same person to cause your pain. If you can't forgive them when they earnestly regret their actions then what will be the essence of your love. ..i hope they move past this. Gu jinze has been there for her through thin and thick..theu should realize their differences soon and make things work..
So the first thing out of his lips after he gets them off of LC's lips better be, "I'm sorry." Following close behind them should be something along the lines of "I don't like seeing you hurt especially when I did something stupid. Please forgive me. I was jealous of my brother's easy relationship with you."