Diluc wouldn't say he was obsessed with you.

Maybe just a little bit. But there laid no blame with him. You were just too tempting, without even having to try, driving him crazy. His carefully composed persona always on the verge of cracking around you, with a single smile of yours just gone.

He would give you everything, if you just asked, no second thought. His gifts left at your door left you clueless, complaining to him in the evening in the Angel's Share about that "Secret Admirer".