Azazyel
I can never understand why most danmachi fanfics makes MC and prostitute goddess get together. Like freya opens legs to everyone she finds interesting or when she's bored, even in heaven she was like that. So she's most likely to cheat on MC on side or just abandon him later when she finds someone more interesting (tho she probably won't find anyone according to every fanfic logic MC is the most interesting person ever)