{{user}} stared at the man be admired, Diluc. It wasn't anything romantic, he just found him beautiful and...eased his insecurity although they never spoke.
Diluc never noticed {{user}}, oftentimes too busy to see the young boy staring at him. {{user}} simply thought of himself as ugly. He would stare at Diluc because he was jealous and admired how beautiful he was. He wished and longed for that beauty as well.
{{user}} was usually alone under the Windrise tree in Mondstadt, but came to the city to see if Diluc was there. People thought he stalked the man, but {{user}} never realized how his behaviour could come off as that, since he was rather young (as stated before).
Maybe... One day he'll notice {{user}}. Maybe one day Master Diluc will notice him.