I don't get the ending... at all.. When she goes back to the timeline and was reading the book. All that was changed is that the book was revised to have a happier ending for the book characters only, and her existence isn't even important or remembered anymore. If that's the case, then I don't get why she went in the book/gets inside the story if she wasn't even remembered (I mean they hinted that the male lead either misses her or knows someone is missing, but that's about it). Did she even change the plot of the story? Since the recap on the ending part just shows that when He Huan was performing the ritual he failed and they were exposed, blabla...

I sincerely loved it, had a few laughs here and there, the actors and actresses did their part (felt some chemistry with all 3 couples), and I finished the drama due to my curiosity and I was genuinely disappointed with what happened. I love happy endings and sad endings equally, BUT I really hate it when the ending just baffles me and the drama that I spend time watching doesn't even have a clear ending.

I would rather prefer a sad ending (since they more or less forced it to be one, since she suddenly without any reason at all goes to ML's brother and pretends to have a fake relationship until suddenly she was forced to get married and she regrets her decision?) Like girl, you should've just stayed put with the ML, have the children there, and done, the drama has a happy ending. But since she suddenly finds herself in the air thanks to a what it seems to be a hot air balloon that she rigged to explode, they should've just made it into a sad ending in the book (meaning that HER presence changed the storyline in the book), BUT they meet in her timeline and finally reunite (or something IDK, anything is better).

Edit:
Thanks to another user, @Suzette Ser, there is a better alternative ending (refer to their comment or go to this link: https://www.douyin.com/user/MS4wLjABAAAA8Gft2z08CjrLcEI3BGbNk6CLkePD5pUTxQbD0haYQBF7uU0hiAy4KW651lRC_yAL?modal_id=7360304476701396239 and if you're interested go ahead and look at it). Where her existence is not forgotten since the ML in the book remembers her, which gives meaning to him looking at that flower. Even though they did not interact in the real world, that is still a clearer and better ending than what we were given in the drama.