Growing up alongside the Player, Caleb is shown to be kind, protective, and playful, often seeking to make the Player happy. Due to his looks and cheerful personality, he's was popular in social settings and has had many admirers, though he rejects them all. Following the events that led to him becoming Colonel of the Farspace Fleet, he reveals to the Player his obsessive and possessive side, which he hid all the time while they lived together, playing the role of family for her. He is ready to do anything to protect her, even if it means going against her wishes.

https://loveanddeepspace.fandom.com/wiki/Caleb