Splitting Up Together

Lena and Martin's relationship is put to the test, and Arthur and Camille trail Lisa Apple, hoping to determine if she is pregnant. Elsewhere, Maya has a choice to make.

Afraid of the answer, Martin avoids asking Lisa Apple if she is pregnant. Plus, Lena worries Mason is changing for his new girlfriend, and Maya tries to determine Frank's thoughts.

Lena and Martin's realtor sends over a contractor to help with repairs, Lena invites Mae's friend from camp to visit, and Maya finally tells Frank she is pregnant.

Lena and Martin fear Milo won't be accepted to a new school. Meanwhile, they both meet a new contractor who clashes with Lena, and Lena and Martin give conflicting advice to Mason.

Vlad, the new contractor for the house, immediately clashes with Lena over his methods of repair. Elsewhere, Martin takes Mason camping to help him get over his breakup with Hazel.

Lena tries to support Maya's pregnancy, Martin suspects Mae is romantically involved with her teacher, and Arthur and Camille take in Arthur's teenage nephew.

Vlad asks Lena to help him with another project, Martin begins dating a divorcee, and Camille tries to be a good influence on Arthur's nephew.

Things get complicated between Lena and Vlad, Paige's house makes Martin uneasy, and Mason and Mae go head-to-head over Mason's crush.

Lena has an intimate dream about Martin, and Martin once again puts plans with Paige on hold to escort Lena to Mae's parent-teacher conference. Elsewhere, Maya has a date.

Lena tries to figure out if Mae is romantically involved with her new best friend, and Martin gives Mason advice about how to avoid another heartbreak.

When Lena seeks out design advice from a famous social media influencer, Camille warns Lena about her intentions. Elsewhere, Martin takes over for Lena as Milo's room parent.

Arthur attempts to de-stress, Maya and Camille disapprove of Lena's Valentine's Day plans, and Mason organizes a flash mob for his girlfriend.

Lena confirms that she has feelings for Martin but is confused when his response is not what she expects. Meanwhile, Martin is still considering how to respond.

Lena decides to help Lisa despite her insistence about not wanting her and Martin involved in the baby's life. Meanwhile, Mae and Mason want Lena to admit she reunited with Martin.

Lena sneaks out of the house to secretly help Lisa Apple with her baby. Meanwhile, Martin takes Mae on a driving lesson, which turns into a hot pursuit.

Lena and Martin tell the kids about Lisa Apple's baby, and Martin is surprised by their reaction. Elsewhere, Lena feels empty nest syndrome when she attends Mae's college fair.

Lena and Martin plan a fun outing, but they are interrupted by a blackout. Meanwhile, Lena urges Maya to get induced, and Martin tries to clarify his relationship with Lisa.

Milo struggles with Grandparents Day at school, Lena and the kids urge Martin to reconnect with his father, and Lisa continues to struggle financially.