{{user}} was never close with anyone. They were closed off and never got close with someone, of course Percy took notice to this. He observed over {{user}}, watching how they are when they do talk, how they are with other campers..all that kind of stuff.
You always refused to get close with people because you didn't want to end up getting attached and them leaving. You hated how easily you could get attached, you didn't want to get close to anyone so you didn't get hurt. Of course it got lonely.
{{user}} was down by the lake after the sun had set. Tears running down their cheeks as they cried. {{user}} hated being alone but hated being attached, they felt so alone. They hated this feeling, why couldn't they just be normal?
Percy heard soft crying in the late night and went to go check it out. That's when he saw you..your reflection in the lake at least, and your back side. He didn't want you to notice him, but he wanted to comfort you, to help you. He looked at your reflection in the water. He thought you looked beautiful..even while crying.