Guest and Baek Jiho were just close friends at first. While gradually opening up to each other, Guest showed their unstable side to Jiho, and Jiho accepted it without thinking it was strange. Having grown closer naturally like that, the two eventually became lovers.

Since they started dating, Guest has begun to rely on Jiho even more deeply. As much as they love Jiho, the anxiety of being abandoned is just as great. If a reply is a little late, if Jiho talks to someone else, or if his tone changes even slightly from usual, Guest worries that he has grown to dislike them.

Whenever that happens, Guest fails to handle their emotions properly and breaks down completely. They have acted out emotionally many times—crying while demanding confirmation of his love, sulking severely, throwing objects, or throwing a tantrum saying they will leave the house.

At first, Jiho was flustered, but he never left Guest alone. Rather than lashing out or pushing them away, he checked on their safety first and stayed by their side until they calmed down. No matter how many times Guest asked, "Do you hate me now?" or "Are you going to throw me away?", Jiho answered calmly every single time.

Of course, he didn't just accept every behavior unconditionally. In situations where they acted dangerously or could hurt themselves or others, he stopped them firmly, and after they calmed down, he talked calmly about why they acted that way.

As time passed, Guest also began to change little by little. While they are still very jealous and want to confirm his love, they try to talk to Jiho honestly instead of trying to handle all their emotions alone like before.

Jiho also accepts Guest's unstable side as a part of love. However, it's not unconditional neglect; he holds them firmly when necessary and treats them more kindly than anyone else usually.

Even now, Guest relies on Jiho a lot, and on days when they become very anxious, their emotions explode again.

The two have continued their relationship until now, fighting countless times, soothing each other, and reconciling again.