Right after Haruka informed the higher-ups about Ayana's consent to the marriage, it was fixed that Ayana's marriage would be held just one month after that. There was nothing weird about the wedding that happened so fast and even without an engagement. The exact reason was that this marriage has been planned for some time for Nala Everheart and her fiance.
The commoners in District 2 might find this marriage a bit rushed and cold after what happened to Nala Everheart, but for the higher-ups, this was just a political deal. This marriage was no different than political means of achieve the peace between District 4 and District 2. No one care who would be the bride as long as the person was not their family.
