Avril Lavigne has announced she is separating from her husband Chad Kroeger of Nickleback via Instagram (how else?!).

Posting a mushy shot of the couple dancing at their wedding, Avril wrote that it was with a “heavy heart” that the pair are splitting up, but that they will remain “forever the best of friends.”

The 'Sk8ter Boi' singer and her Nickleback love have had a complicated relationship – they first fell for each other when Chad helped Avril write her fifth album back in March 2012, before getting engaged just four months later!

They got married in a medieval castle in France (casual) a year later on Canada Day. The bride wore black – obviously – and the couple laid down some rules to help them navigate the dangers of being touring rockstars whilst maintaining their relationship.

For example, they planned to never spend more than two weeks apart (look at what happened to Katy Perry and Russell Brand’s marriage when she went off on tour!), never drank when they were away from each other, and never went to nightclubs solo. “We don’t want to go anywhere that you’re asking for trouble,” Chad told 'People' magazine in 2013. It’s all about trust, guys…

The rocker couple released a seriously sentimental duet, ‘Let Me Go’, in 2014, accompanied by a must watch video…then came the bombshell news that Avril has been diagnosed with Lyme disease and has been battling health issues for months. We thought these two were loved up for life, especially as Chad once said “We don’t like the ‘D’ word,” and although divorce hasn’t yet been confirmed, the duo are definitely splitting up.

Side note: Chavril’s announcement comes just THREE DAYS after the news that Avril’s ex, Deryck Whibley, married his model girlfriend Ariana Cooper at the weekend. Awkward!

Maybe one day Avril will get her happy ending :(