To be honest it's only 6 episodes but I understood what was going on on the 4th.
At first I thought it was something like a back and forth on her life before and after they broke up but then it shows that she gave birth to her child so I was like "was it all a dream?"

So actually on the 3rd episode it shows her life on a parallel universe. In first case she gave up on her dreams , got married , had the baby , sacrificed her life pretty much and was unhappy (plan b). In the other case she chose her carrier , got rich and successful and was happy (plan a).
Of course at the end she chose plan b because she realised that family values more than money or career. I would prefer it better if she would have chosen plan a. Now the end it was so predictable.