For Tao Ran, it is not easy to let go of someone when you fall in love with him, so he has to let him come back to him even if he is robbing him of life.
For Tommy, when falling in love with someone, many emotions arise unconsciously.
For Wu Tong, falling in love with someone means staying with him for the rest of his life, being his confidant, and only drawing eyebrows for him.
For Gao Hang, when he falls in love with someone, responsibility is more important and he has to rely on her for life.