honestly, editing a publication has taught me so much about publishing. don't read too much into the timing or content of emails from journals. sometimes an editor will adore what you send but won't publish it because it doesn't align with the journal's vision. sometimes the editor is busy and happy to slim down the submission backlog however they can. sometimes the editor remembers your name from previous subs and really appreciates the fact that you keep sending work in but won't say anything to maintain professionalism.
(unrelated, but editing has also taught me that the phrase "to whom it may concern" is Truly The Worst)