There was no way Moon Jiwoo was able to go to her apartment after that happened. She had an idea that Sookyung would try to find her after she had disappeared on him like that, and the first place he would try to look for was her apartment.
But after that outburst, she was totally embarrassed, and one of the things she desperately wanted to hide away from the male.
Thinking about it for a while, Moon Jiwoo came out with the conclusion that, although it was wrong of Sookyung to play with her like that, she should have at least expected this much, seeing how rudely she acted with him back at the Underworld.
After looking at that in such a way, Moon Jiwoo's anger towards the male started to diminish. It was understandable from his position to seek for revenge, and even Jiwoo would do the same.