If there is a person, he is the first person you see when you open your eyes since you were born.
If there is a person, he is the first person who opens your eyes every morning since you can remember.
If there is a person, eat with you, bathe with you, sleep with you
If there is a person you want to share every minute and every second of 24 hours a day with him or her
If there is a person, even if you are mysophobic, you are willing to drink from the same cup with her
If there is a person...
Then this person will become a habit for you and you will not be able to quit it for the rest of your life.
For Qu Xiaolu, Qu Xiuchen was such a person who could never give up for the rest of his life.