The 20-year-old model split from the "Can't Feel My Face" hitmaker two months ago, but is hurt with the intimate pictures of him and Gomez, reported E! online.
"She is actually not over The Weeknd. She still loves him. They are on fine terms, but she is bitter about the romance with Selena. She was not happy when all of that gossip went everywhere between The Weeknd and Selena.
"It really hurt her seeing Selena be all up on her man. She still feels like they have a connection," a source said.