to fall for someone ...wenn man bedenkt, dass fallen ja so ist wie fliegen (man hat nur ein verbindliches Ziel, wie Moriarty zu Sherlock Holmes einmal sagte)

Tja, frei nach Douglas Adams muss man beim Fallen nur den Boden verfehlen :)

Hier ist übrigens noch etwas Schönes zur Kombination "falling/flying" aus dem Film Crazy Heart:

https://www.youtube.com/watch?v=LTYyS8bxV78

At a stretch you can fall for an object but yes, it's more common to fall for a person.

OED

fall for

 b. To be charmed or captivated by; esp. to fall in love with.

1906   National Police Gaz. (N.Y.) 9 June 3/4  Like all the rest of male humanity [he] fell for her and he's sorry, you bet.

1916   H. L. Wilson Somewhere in Red Gap v. 186  Even Mis' Judge Ballard fell for it [sc. a costume], though hers were made of severe black with a long coat.

1926   J. Galsworthy Silver Spoon ii. viii  ‘He's fallen for Marjorie Ferrar.’ ‘“Fallen for her”?’ said Soames. ‘What an expression!’ ‘Yes, dear; it's American.’

1958   Times Lit. Suppl. 12 Sept. 509/4  He meets and falls for a twenty-year-old dipsomaniac.

1991   ‘J. Gash’ Great Calif. Game (1992) xviii. 167  There was a hand-shaped left-handed tea-caddy spoon I particularly fell for.

2013   N. Farrant After Iris (2015) 94  ‘You've got a crush on him,’ said Flora... ‘You're falling for him big time.’