Original: Although she denies she is experiencing postpartum depression , Jenny exhibits all the symptoms , including a growing impatience with Marley and John , who asks Sebastian to care for the dog when Jenny insists they give him away . She quickly comes to realize he has become an indispensable part of the family and agrees he can stay .
Simplified: Jenny is experiencing all the signs of postpartum depression though she denies it and grows impatient of Marley and John and thinks they should give Marley away while John asks Sebastian to take care of him but Jenny realizes that Marley has become a indispensable part of the family and decides that he can stay .