The “fare well” bid to the bride and bridegroom in the first part of this group of fragments show that there were no ill wishes directed towards the new couple. The “polished doors” described conjure images of a new home as well as of new opportunities. Greek literature often tells of the influence of the Gods, so we can see why the call to Hymenaios in Fragment 117B is clearly a final plea for the success of the newlyweds, in their life and in their marriage.
Nice reprisal of the three main subjects of your essay, but I think you might come up with a more inspired, exciting final twist here for a conclusion.