Since Maruto is the type of author that writes melancholic tragedy, this manga ending is the fantasy.
He doesn't wake up in the novel version and get round 3 with her. She just gives him a kiss and walks off. I think the novel ending is more in line with what Maruto writes.
Oh I almost forgot, Heiter means to "put it on" Fern instead of "wear it on" but I decided to use "wear it on" for a double meaning, as an idiom for "wearing people down", meaning to hold them back. (Which is is how Fern perceived the ribbon.)