This has nothing to do with the story line and everything to do with the writers. We are watching Lucifer and are mostly enjoying it (there are a few episodes and characters that we haven't liked, but for the most part, it's a lot of fun) and were looking forward to the episode when Chloe discovers that Lucifer has been telling her the truth the whole time. At the end of that episode, she sees who he really is, and it ends with her saying something to the effect of "OMG, it's true". I was looking forward to the fallout from that, her reaction, his reaction to her, maybe their friends who knew the truth helping her through it, etc. but instead, we get a regular episode like nothing had ever happened. Then, the season finale (just 2 episodes later) was a fantasy about what if they'd never met (or met under different circumstances). Are you freakin' kidding me with this?! I see that the description of the season 4 premiere says that Chloe insists that she's ok with who Lucifer really is. It really ought to be more complicated than that (even if only for one or two episodes). I hope it is, but even so, waiting two episodes and over a summer hiatus, must have weakened the effect.
(We don't binge and sometimes it takes us days until have time to watch another episode, that's why I don't know for sure, yet, how it turns out).