It would be more ordinary. They would have normal relationship problems like jealousy over other people, instead of over some powerful demigod. Their dates would be simple, like going to the movies or having dinner at a regular restaurant.
If they were mortals, their relationship would lack the life - or - death situations that often brought them closer as demigods. They would build their relationship on shared interests like reading books or playing sports. There would be less of the intense loyalty that came from fighting side by side in battles. Instead, they would have to work on trust in a more normal way, like being honest about their feelings and past relationships.
As mortals, Percy and Annabeth's relationship would be different in many ways. For starters, they wouldn't have the instant connection that came from being demigods in a dangerous world. Their relationship would develop more gradually, through getting to know each other's families and friends. There would be no need to protect each other from mythical monsters. Instead, they might protect each other from emotional harm, like a bad breakup or a family feud. Their love would be more of a slow discovery of each other's true selves, rather than the passionate bond formed in the heat of demigod battles.
The relationship will likely grow stronger. They'll have to rely on each other more for daily tasks and support. For example, if Percy has a bad day at work or school, Annabeth will be there to comfort him right away, and vice versa. However, it could also be a bit strained at times. There might be moments when they feel suffocated by each other's presence, but they'll have to work through those feelings to keep their relationship healthy.
They might lead normal lives, going to school, getting regular jobs. Maybe Percy would be a lifeguard at a local pool and Annabeth could be an architect student. Their relationship would lack the drama of demigod battles but would be filled with normal human challenges like dealing with family, exams, and making ends meet.
Sally would likely become a mother figure to Annabeth. She would offer her advice and support, just as she does for Percy. Percy and Annabeth's relationship would become more domestic. They'd have more time to just be together, sharing small moments like having breakfast together in the morning. Their bond would strengthen as they face the normal day - to - day challenges of living together, along with Sally.
Their relationship could become more intense. The hickeys might be a sign that they are moving to a more physical and passionate stage. Percy might become more protective of Annabeth as well, seeing how she's so openly showing her affection in this way.
Their relationship could become more intense. With her hearing his thoughts, they'd be more in tune with each other's feelings. It might make their bond stronger as they'd understand each other on a deeper level.
It can develop through this moment of closeness. Just the act of her sleeping on him can show a level of trust, which Percy might recognize and it deepens their bond.
They can develop their relationship by having deep conversations. For example, sharing their fears and dreams about their future together. Maybe Percy tells Annabeth about his insecurities of not being a good enough husband sometimes, and Annabeth reassures him.
Their relationship in the fanfiction could develop in a more mature way. College is a time of self - discovery, and they would be no exception. Percy might become more confident in his abilities and be more assertive in the relationship. Annabeth could become more empathetic towards Percy's insecurities. They could also start planning for their future together, like thinking about post - college life and how they can continue to fight for the good of the demigod world while also having a normal life. Maybe they even consider starting a demigod training program for future generations on their own.
Percy would likely be the one to encourage their son's adventurous side. He'd take him on little trips around the demigod world, showing him the cool places he's been. Annabeth, on the other hand, would focus on his education. She'd teach him about history, architecture, and how to think critically. Their son would look up to them both and probably want to make them proud. He'd have a special bond with each of them, going to Percy for exciting stories and to Annabeth for advice on more serious matters.
Their relationship is likely to be complex. They are friends and comrades who have fought side by side many times. So, there's a strong bond of loyalty between them.