Frustrated by the waning passion in her marriage, Billie starts journaling about — and obsessing over — her wild erotic exploits with ex-boyfriend Brad.

Billie's emotional rollercoaster of a day turns into an arousing night out when Cooper attempts to reignite the spark in their relationship.

While Cooper decides to check out the competition, Billie dwells on the passionate highs and soul-crushing lows that defined her romance with Brad.

Billie's outing with her fellow moms stirs up memories of Brad — and has her making a beeline for Sasha. Cooper unloads his marital worries.

As her thoughts continue to drift back to the connection she shared with Brad, Billie proposes a plan to put Cooper's mind at ease about her journal.

Billie seeks help to untangle her feelings about her marriage and Brad. Cooper receives a tempting proposition after a rewarding day at work.

As Brad broods over the mistakes he made with Billie, she and Cooper bite off more than they can chew in a bid to spice up their marriage.

Faced with the repercussions of their double date with Devon and Trina, Billie and Cooper arrive at a make-or-break moment in their marriage.

In the middle of starting over, Billie steps out of her comfort zone for a night of fun. Sasha rekindles an old flame, and Cooper ignites a new passion.

Overwhelmed by changes at home, Brad reminisces about the past. Billie takes a stand during a visit from her mother. Sasha's career and love life clash.

Billie enjoys a blissful romantic interlude. Sasha unveils her relationship in a big way. Cooper seizes a tempting opportunity that soon backfires.

As Brad seeks comfort in a moment of crisis, Sasha does damage control, Billie's spa day turns awkward, and Cooper faces fallout from his life choices.

Billie looks to make a fresh start amid an emotional day. Sasha's soaring success isn't what she expected. Cooper's wild night swerves out of control.

A fiery incident brings revelations to light for Billie as Cooper confronts his demons, and a joyous celebration of love leads to new beginnings for all.