July is soooooooo far away. I guessed the ending before I even started (view spoiler)[my other theory was Sydney gets pregnant, which I think is still a possibilty, she is not on the pill anymore and RM has used the failed birth control route before (hide spoiler)] and now I feel like I need to know more, this wasn't enough. 
 Possibly more thoughts when my physical copy actually arrives and I get the chance to reread.