In episode 4, Liam finally admits to Olivia that he did cheat on her, though his admission is somewhat vague and not a full confession of lying; this admission is a pivotal moment in their relationship during the therapy sessions.

Olivia acknowledges the need to set boundaries following Liam's admission and asks him if he will make her a priority moving forward, indicating her attempt to rebuild trust despite the betrayal.

The physical barrier between the couples, which had been a literal wall, is removed in this episode, symbolizing the breaking down of emotional walls and leading to raw vulnerability and more open interactions among the participants.

The group therapy session compels couples to express what they truly value in one another, leading some partners to rediscover connection while others confront painful realities about their relationships.

Yes, tensions arise particularly around Jazz, who is described as being overly involved in others' business, causing some participants like Craig to ask her to back off, highlighting interpersonal conflicts within the group dynamic.