'Married at First Sight' season 4 spoilers: Derek Schwartz to divorce Heather Seidel?

Promotional image for the reality show "Married at First Sight" Facebook/MarriedAtFirstSight

The fourth season of "Married at First Sight" could feature the first couple ever to decide to end their marriage even before the end of this season's social experiment.

In episode 7, Derek Schwartz revealed that he is planning to give his marriage with Heather Seidel another shot within the rest of the six-week trial despite their constant disagreement. According to Derek, he made the commitment to be in a union with the woman who will be matched to him in the social experiment. He also said that he plans to stick to the vows that he made during their wedding and to make their relationship work despite all the problems that they will encounter.

However, Heather was seen telling Pastor Calvin Robertson that her new husband does not possess any of the characteristics of her ideal partner in life, especially during their petty fights. She claimed that she does not like the way her new husband handles their arguments, particularly the name calling. But in spite of trying to stay calm and trying to be positive whenever they face a challenge, she still finds it hard to understand Derek. "I'd like to think that I've grown to a point in my life. I'm 32 years old. I'm not dealing with this type of s**t anymore," she stated.

Despite Derek's intention to remain married to Heather for at least until the end of "Married at First Sight" season 4, Heather's decision will be revealed in the eighth episode of the series.

Meanwhile, Lillian Vilchez and Tom Wilson's own union also seems to be on the rocks after the two disagreed about having children.

In the previous episode, Tom revealed that he is not the type of guy who wants to have children. But this does not sit well with Lillian. "I start to think that the picture I have in my head for the future may not become reality. That's when I start thinking, 'Well, why should I continue to open up my heart to someone who maybe doesn't want the same thing as me?'" Lillian wrote in her article for PEOPLE.

However, the 24-year-old realtor also said that she is willing to get to know Tom first to make their marriage work.

Tom and Lillian's marriage, as well as the union of Sonia Granados and Nick Pendergrast, will still be under the cameras' scrutiny in the next episode of "Married at First Sight" season 4 on Tuesday, Sept. 13, on FYI.

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