So Misaki and Aoi were married. I got confused there for while.
Edit: I read the next chapter and I immediately remembered there's this chapter showing a woman on a hospital bed. My suspicion was right and I'm not happy about it.
For those who want to know, I don't really know what chapter it was as well. But whatever happened to Hayate, I don't remember reading it here in the manga. I do know that the last episode of the 1st season of the anime shows what happened to Hayate.