She and a pal printed and stuck up hundreds of posters at train stations and office blocks around the city where her fiance and their friends work.
A picture - taken from Antonio's Facebook profile - shows him nestling his head between a girl's naked boobs.
"Thank goodness there's Facebook! At least I've disovered you're a traitor pig before the wedding! Signed, your former betrothed bride and the 548 guests of our wedding," wrote Valeria, 28.
Link (Photo: EuroPics)