There are many pairings in this story and they keep swapping around. Most of them at various times are rivals to each other then become friends, lovers etc.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
When a Man Loves a Man