'Married at First Sight' season 4 spoilers, latest news & update: Tom & Lillian calling it quits? Sonia moves in or out?

There are only a few days left before decision day drops in for couples in "Married at First Sight" season 4, and viewers of the reality TV show are waiting with bated breath if another couple will take Derek and Heather's lead and end up divorcing, too.

As fans know, the premise of the reality TV series is for the couples in the show to decide whether to stay married or get divorced. Derek and Heather were the first to raise the white flag of surrender, and now, the two are in the process of moving on from their failed marriage. However, talks are rife that Tom and Lillian will be following suit.

Those who regularly watch the show are aware that Tom and Lillian have always struggled to make their relationship work. The main thing causing Lillian too much stress is the fact that her father is still unaware that she has gotten married and in a reality TV show, no less. Because of this, fans could expect to see Lillian unraveling in the next few episodes of "Married at First Sight" season 4 due to stress.

Another thing causing her stress is her job. She's been losing one client after another, and although Tom has the best intentions for both of them, the pressures Lillian's experiencing is taking a toll on their relationship. She is not helping Tom achieve their goal of strengthening the foundation of their marriage. Instead, she's constantly freaking out and making Tom the scapegoat of her frustrations.

Fans are assuming that Lillian's insensitivity to Tom's feelings and needs, as well as her unwillingness to help make their marriage work, will put their marriage at risk.

Meanwhile, Us Weekly reports that Sonia has decided to move out of the house she shares with husband Nick. Nick has been asking her to come home, even consulting with Dr. Pepper Schwartz in order to encourage Sonia to come back home, but to no avail.

Sonia and Nick have been seeing each other often through their time apart, but Sonia still doesn't want to move back in with her husband. Apparently, she wants to think things over and will decide on her own to come back once she's thought things through. However, she's keeping the option of divorce at bay, because according to her, she still misses her husband, it's just that she's not ready to move back in with him yet.

"Married at First Sight" season 4 airs Tuesdays at 8:30 p.m. ET on FYI.