User blog comment:SayuriDarling/The Demigod Diaries Official Discussion Blog/@comment-4515675-20120815183719/@comment-3146930-20120819165415

He may have only had two months with Annabeth. I mean Percy lives in NYC and Annabeth lives in California with her parents sometimes. Maybe Percy only had that first month with her (August into September) and then saw her again around Christmas (December).