That's what I'm saying, though. There is far too much time that passes as just "hey, three weeks have passed, isn't this tension excruciating?" Maybe it felt longer for the poor folks reading the chapters in the serialized manga, but for me to go from the end of volume 1 to the first chapter of volume 2 never felt like a long separation. Only Ratri's normal subtlety about his intention to "get Kai back" felt casual. Nozomi's emotions felt forced for the sake of dramatic effect. Sure, he has the right to feel betrayed and upset about Coyote, but we never got to see any of that over the three weeks that are skipped in the story. Some events could have been flipped around to accomodate a different order for a third volume, or at the very least some fleshing out of the tension could have been inserted. If not, the end of volume cliffhanger could have been some other overly dramatic plot device (Viharn's meddling, Coyote's running away, etc. etc.).

The postscripts are written long after the volumes are serialized. I'm sure sensei was in the middle of volume 2 when she had to write the postscript for the release of the tankoban for volume 1, so she probably already knew by then how many volumes she was being given for the series.