Is it wrong to be in love with yourself? Yes.
There were days that Feliciano loved his alternate so much that he couldn't view that answer as a yes, but this was not one of those moments.
Luciano was toying with Feliciano as if the other North Italian didn't know.
Feliciano knew that it was wrong to hold on to the other as if it wasn't killing him, emotionally.
He understood that this pain was partially his own fault by not running away when he noticed that something was wrong.
"Feliciano, I missed you." That shouldn't be allowed to make Feliciano's heart leap for joy.
"Do you want to get dinner?" Feliciano asked.
"Si, that's fine." Luciano's answer sounded so perfect and smooth.
During dinner, Feliciano pushed away all thoughts of his impending heartbreak, and focused on this false love of theirs.
Feliciano did genuinely love Luciano despite the latter's feelings on it.
When Luciano kissed Feliciano, the latter believed that he was loved in that moment.
He knew that whenever he was away from his 2P self that the lie of his would hurt too much, shattering his heart further.