There are plenty of other interests in the main character, and many characters that you become close to as part of the game. The fact that there is a group of heroes, all very close, all interested in saving the world, means that this game, more than previous ones, is sort of subverting the "save the princess, get a wife" trope in my eyes.

Every member of the group of heroes in the story is a realized character with their own motivations (borne out more in the DLC), and all of them, if you are looking for a relationship - notice _you_ not the game, would be potentially interested in the player character.