Viewers of Don't Tell The Bride were left horrified last night when a woman's 'controlling' behaviour led to the big day being cancelled for the first time in the show's history.

Yanis, 23, and Shanise, 19, from Birmingham, were told by producers that the wedding was off, when they discovered that the bride had secretly gone through her fiancé's emails to find out the wedding plans.

The couple appeared on Sunday's episode of the E4 show, which leaves the groom in charge of planning the big day - with no help or interaction from the bride.

Viewers were left stunned by the episode, with many pointing to 'red flags' in the relationship that suggested she was 'controlling' and that the relationship was 'toxic'.

One commented: 'That episode of #donttellthebride was perfect to show during #DomesticViolenceAwarenessMonth as the bride's controlling behaviour was setting off so many relationship red flags.'

Viewers branded bride Shanise, 19, from Birmingham 'controlling' after she looked through Yanis', 23, emails and discovered the secrets of their wedding on Don't Tell The Bride

Those watching were left stunned by the episode, with many calling Shanise 'controlling' and their relationship 'toxic'

They added: 'Their relationship was toxic. Her behaviour was so controlling she sabotaged her own wedding.'

Another wrote: 'Watching Don't Tell The Bride tonight has irritated me so much! The bride fully admitted to knowing his whereabouts 24/7, being controlling and having full access to his emails. If that was the other way round people would be telling her to get of the relationship.'

From the outset of the show, Shanise admitted she was controlling, telling the camera: 'I do wear the trousers in the house. I give him what he can cope with, then I do the rest.'

She revealed that she always knows where her partner is and who he's with, saying: 'I always try to keep a record of what Yanise is doing and his whereabouts.

Viewers were stunned by Shanise's 'controlling' behaviour after it emerged she had been going through her fiance's emails and discovered the plans for the wedding

'I feel my anxiety is going to go through the rooftops not knowing what Yanis is up to.'

Yanis planned to wed his bride in Paris before flying back to Birmingham for the reception - with their budget only stretching to pay for 13 guests to travel to the ceremony.

The groom decided that Shanise's ten-year-old brother Chris wasn't a priority guest and would only attend the reception.

However, Yanis appeared to have a very sudden change of heart - leading the producers to initially become suspicious.

Shanise and her bridesmaids later admitted they knew details of the day as she had snooped through the groom's emails on an iPad

Then, when bridesmaid Melissa was told that she no longer would be attending, she let slip that the flights were booked to Paris.

The bridal party knew they would be travelling abroad, but they were supposed to have no idea where they were going - leading the producers to conclude Yanis and Shanise had been communicating via email.

The bridesmaids later visited Yanis' house for what they thought was their dress fitting, however, they were stopped by producers mid-way through their chat.

Producers were forced to confront the groom and told him they'd have to cancel the entire wedding for the first time in the show's history - as their 'secret was out.'

The show's producer said: 'Okay guys I'm going stop you there. We normally would do a bridesmaids reveal, but it's come to our attention that the secret appears to be out and the bridal party know about some of the plans for the wedding.'

After asking Yanis how the pair were communicating, he confessed: 'Shanise got access to my iPad with my emails in there. So technically the bride wasn't told, she found out through email.'

After storming off into the kitchen Yanis gathered himself and told Shanise the bad news on the phone, saying: 'It's not good...It's not going ahead.'

The distraught bride-to-be broke down in tears and was comforted by friend and bridesmaid, Melissa (pictured together)

Shanise, in disbelief, asked: 'What the hell - what happens now? I need to know - is there a wedding or not?'

She was then left in tears after being told by producers: 'I know this is difficult but the rules have been broken and we are going to have to cancel this wedding.'

A week later, the couple reflected on their time on the show and confessed they were 'heartbroken' and had found it hard to 'cope' with the aftermath of breaking the rules.

Viewers were stunned by the history-making episode, with many taking to Twitter to discuss Shanise's behaviour.

Yanis (pictured) then had to call his fiancé and tell her they would no longer be getting married due to the rule-breaking

One commented: 'I feel sorry for him, because she couldn't just leave him to do it.'

Another added: 'I'm just here to see this girl ruin her own wedding.'

'Love donttellthebride but tonight's episode annoyed me so much. Why go on show if you are controlling you sabotage the whole thing,' another wrote.

Shanise was left 'heartbroken' when she was told over the phone by her husband-to-be that there would be no wedding

One said: 'She has no trust...why get upset...you broke the rules and you're lucky they haven't asked for the £13K back?!'

Another wrote: 'The bride has only got herself to blame for the wedding being cancelled, she checked her fiance's emails because she didn't trust him at all, she ruined her own wedding.'

They went on: 'I hope he dumps her a**, she wasn't even sorry.'