Mod Sun is reportedly shattered by Avril Lavigne’s budding romance with Tyga.

According to TMZ, the singer has been “down in the dumps” since his split from the pop-punk princess.

Their breakup was allegedly “far from mutual.”

A source for TMZ claims Mod Sun was completely blindsided by Lavigne’s decision to call off their engagement.

To make things worse, PDA photos of Lavigne and Tyga at Paris Fashion Week have left Mod Sun devastated.

The “Flames” singer proposed to Lavigne in Paris last year.

Mod Sun is said to be shocked at how quickly Lavigne moved on with Tyga.

Lavigne confirmed her Tyga romance with an intimate kiss at Paris Fashion Week.

The duo looked very cozy and intimate at the fashion event.