User blog comment:Merry101/What Will Fans' Reaction Be If Bloom And Sky Breaks Up/@comment-31892545-20170825035003

Well, it's my understanding that Bloom did have I think one or two other Love interests in the comics.

Do I think they could realistically break up now? Not really. We're seven seasons in, and any struggles they had have resolved themselves. The relationship dynamic in Winx Club isn't hyperrealistic, but then again it's fiction. All of the couples have had their problems, but most have managed to bounce back.

It was important for Winx Club, when it was originally aired, to have a "male" dynamic, so that's why we don't see much if any change with relationships.

Speaking from a canon standpoint, Bloom and Sky are fated to get married: it's written in the Book of Fate.