Avril Lavigne and Mod Sun
Her rep confirmed in February that she split with her fiancé, and Avril went on to debut a romance with Tyga days later.
Tom Sandoval and Ariana Madix
The Vanderpump Rules stars split in March, with him offering a public apology.
"Most of all, I want to apologize to Ariana," Tom said on Instagram. "I made mistakes, I was selfish, and made reckless decisions that hurt somebody I love. No one deserves to feel that pain so traumatically and publicly."
Falynn Pina and Jaylan Banks
The Real Housewives of Atlanta alum and her fiancé broke up about a year after they got engaged. The pair, who share daughter Emma, wrote, "It is with deep sadness in our hearts that we have decided to end our journey as a couple."
Mackenzie Edwards and Ryan Edwards
The former Teen Mom star filed for divorce from Ryan after nearly six years of marriage.