The singer — who divorced husband Deryck Whibley earlier this year — has reportedly split from boyfriend Brody Jenner and is threatening to make a new album.
“They had a major falling out during Brody’s birthday and haven’t seen much of each other since,” a source said.
“Brody says Avril wasn’t really making time for him anymore, since she’s been under pressure to get into the studio to work on her new CD.
“Brody hopes they can patch things up once she’s not so busy. He wanted to marry her.”