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