As a drama about trauma and healing there are far too little conversations with psychotherapist and far too much accidental overhearing, eavesdropping, retelling and etc. (there must be some ethical boundaries, that were crossed multiple times?). Please tell the writers that there are other ways to move the plot forward!!!

As for the Depression - it is a very ugly illness, and yes it varies from person to person, but I (personally) just feel from the writing and FL "a bit depressed" vibes and "it will pass" thinking. Bish, no it won't! Not until you'll take it seriously.
I would've loved if the writers would have digged deeper and looked into darker corners of this illness.