Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20161114162352/@comment-28590810-20161123220151

No, we are implying that they started to date five months after the end of BoO, Hidden Oracle is set SIX months after.

So they have been dating for a month (and yeah, this is only speculation, but by the way they act, one can say that they are only in the first stages of a relationship)