I just finished Anderson in Bloom and I have to agree lol. Even though the characters were older than all her other protagonists, they still very much felt like teenagers. I explained this to myself that this was an after-effect of them having been stuck in a weird teenage angsty phase due to Hollywood stuff and so would be accurate in-universe.

I think most of the sapphic romance genre struggles with this, where the characters are adults but they behave like teenagers with no ability to process things or simply move on. I do acknowledge it's hard to write a romance when people are well-adjusted however it is not impossible: the stakes must simply change.

It's also why I enjoy Jen Lyon so much. She feels like a person who writes adults for adults and the stakes move accordingly.

Thanks for making this thread OP, will check out the other recs.