Memory Lost

His only useful skill was an ability to cadge hearts.
I fell for his fervent personality and easy smile.
Leaving a scintilla of regret under him and an oak tree

Cadge (verb)

to obtain (something) for free often by persuading or imposing on another : sponge

to take, use, or borrow (something) without acknowledgment

Merriam-Webster

Fervent (adjective)

having or showing great warmth or enthusiasm

dictionary.com

Scintilla (noun)

a minute particle; spark; trace

Collins