On tonight's episode of FYI's hit reality TV series "Married at First Sight," the three arranged married couples are still struggling with the same obstacles that plagued their relationships since they met at the alter three weeks ago. In a new sneak peek, Ashley Doherty reveals that she still doesn't feel chemistry with her husband David Norton, Tres Russell and Vanessa Nelson struggle to communicate, and Samantha Role still feels that her husband Neil Bowlus is being "fake."

Tres Russell & Vanessa Nelson

Russell sits next to his wife Nelson and tries to talk to her, but Nelson seems stressed out. Russell asks Nelson if she had a bad day at work and she barely responds to her husband, which frustrates him. "I don't know how we're gonna work if we can't talk about little stuff," Russell tells the cameras.

David Norton & Ashley Doherty

Doherty still feels uncomfortable with her husband Norton. A visit from expert sexologist Dr. Levkoff last episode was supposed to help the couple overcome a struggle with intimacy, but Doherty shuts down even more and she finally reveals why in the clip. "I wasn't prepared to not feel any chemistry," Doherty tells cameras. "How do you talk about that with someone without being hurtful to them?"

Neil Bowlus & Samantha Role

Even though it seems like this couple has taken steps forward in their marriage, Role digs up old resentment when she calls Bowlus out again for being "fake." "I learned from the best," Bowlus responds, which angers Role and she asks him to leave. When Bowlus tries to explain it was only a joke, Role walks out on her husband.

Watch the full sneak peek below and be sure to catch tonight's episode of "Married at First Sight," airing at 9 p.m. on FYI.

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