Yeah, the romance tag isn't that relevant in this instance. I guess the extra will decide whether that tag is appropriate. Because if you go just straight up for a read, it's just the author being afraid that she'll get abandoned again. I really don't like when a manga is purely subtext, I guess I just the need the concrete "and they kissed/fucked" or something, because I tend to go all negative when it's not declared like that. Even if everything is pointing in a direction that they got together.
Either way I hope more of Kodama Naoko's work gets translated. I'll read Summer Splash again xD