The slash (/) originally had me thinking that as well, but Ocean's use of the word "possible" in it feels a bit odd to me.
Why not just say "will not be compatible with Bella" like it was said with Amber with Bella's part, or better yet, just say "will have to choose between Nami and Bella"?
Feels pretty ambiguous with "Nami or Bella is possible."
It also shows with Victoria part with it saying for her "and can be compatible with every other girl" (which I'm guessing Victoria is okay with MC hooking up with other girls since she consider other girls to be her friends).
Oh well, in the end I'll be exploring both paths (if I do have to choose), so it won't matter.
But if somehow I can choose both.......oh boy......