The kind of love Juno wants is the kind of love where I only love you and you only love me. She doesn't want to make do with it, so she doesn't like Gu Chengliang because Gu Chengliang belongs to the make-do type. It's just like air, everyone can't live without it, but no one pays much attention to it. The same goes for Juno. She never thought Gu Chengliang was important. However, when one day, Gu Chengliang was going to get married, but the bride was not her, she was no longer calm.
Gu Chengliang fell in love with Juno, much earlier than Juno fell in love with him. It was as early as when Juno was Gu Ark's girlfriend, and Gu Chengliang was Gu Chengliang's buddy who grew up wearing crotchless pants. Therefore, when Gu Ark got married and the bride was not Juno, Gu Cheng felt very complicated in his conscience.
Question: Gu Chengliang, since you love others so much, why do you treat them so badly?
Answer: Because it's good for her, this approach won't work.
If you don't do it, you won't die. Being evil is the way to go.