It’s one of the places where I would’ve loved a few more episodes to really process the fallout of all of Bojacks story coming to light

I think Kelsey realized what Gina went through and reached out to her. That’s why in the final episode (or second to last) you see Gina is starting in the movie Kelsey is making despite her having been warned she’s difficult to work with. But I really would have loved to see that play out.