*spoiler alert*
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Yes it does.
But there is going to be a bit of angst plot coming up as he starts to regain his "old self" memories, as well as there being more to their backstories which add more layers to the plot and complexity. He won't be that nice to her soon...
I won't spoil too much on the details. But as the story progresses, the end is a "good ending" in terms of, yes they end up together alive. Later on in the story ML deeply reflects and does his best to get back with FL.
Here:
https://novelbuddy.io/flowers-are-bait
The manhwa chapter 39 is the novels chapter 64. Read 64 onwards if you want to continue from here. Enjoy!

Please tell me it has a good ending!!