Seven Year Switch spoiled Tallena's dream wedding dress. So she's selling it.

We met Tallena on Australia’s most controversial reality television show, ‘Seven Year Switch‘.

Tallena and her partner of two years, Brad, were engaged and due to get married in February. But Brad’s concerns that it would cost too much money meant that the wedding was postponed.

Tallena and her partner of two years, Brad. Image via Channel 7. 

As part of the program, the couples switched partners for two weeks.

The pair caused quite the stir late in the series, when Brad's temper was put on full display. Brad discovered that Tallena had shared a hot tub with her experimental partner Tim, and aggressively called their engagement off.

Brad proposes to Tallena on The Seven Year Switch. Post continues below...

Viewers insisted that the couple were toxic together, and some went as far to accuse Brad of emotional abuse.

Today, Tallena has posted a picture of her wedding dress to Instagram with the caption "Original Wedding Dress For Sale! Donation will go to a charity!"

Original Wedding Dress For Sale! Donation will go to a charity! A charity extremely close to my heart @beyondblueofficial . I was absolutely devastated when my dress was aired 6 weeks before my wedding forcing me to buy a new one, therefore I would like to put the money I receive towards a good cause. Please pass on this post and let's all help raise awareness for depression and anxiety. Comment or pm me to make your off, winner will be announced Thursday week. Lets ban together and raise as much funds as possible! #beyondblue #charity #raisefunds #depression #anxiety #awareness #spreadtheword #wedding #weddingdress #dress

A photo posted by @tallena_brad_squishy on Jun 8, 2016 at 7:20pm PDT

But it isn't for the reason we expected. Speaking to Mamamia, Tallena explained "I was devastated when I saw my dress on TV" . She said she was "unaware the dress would air before our wedding", and when she saw the episode she "burst into tears then and there".

The most memorable weddings in pop culture. Post continues after gallery...

Tallena has decided that the money she makes from selling the dress should go to a good cause, so chose a charity particularly close to her heart, Beyond Blue.

As well as wanting to "help raise awareness for depression and anxiety", Tallena has fought her own battle with the illness. She told Mamamia that she has personally struggled with depression and anxiety for 10 years. Beyondblue provides information and support to help everyone in Australia achieve their best possible mental health, whatever their age and wherever they live.     

Smile, love, laugh, 3 essential ingredients to our stronger then ever relationship. Our special day ????????????❤️ #sevenyearswitch #loveyou #love #fighters #loveconquersall #lovers #bestfriends A photo posted by @tallena_brad_squishy on May 26, 2016 at 12:33am PDT