in the aftermath of meaning

This was exactly why something in Buck’s stomach had sunk like a stone when Bobby separated them yet again and paired Buck with Ravi. They were partners. Buck knew well enough to make sure Eddie wouldn’t go rogue like this. And vice versa. Got any advice? Ravi had asked weeks ago on the first shift without Chimney. Eddie had smirked in that rugged, twinkling eyed way of his and replied, Yeah, just make sure you watch his back. Because that’s usually my job. And then he had thrown Buck a wink like he knew it would ease his nerves.Buck cursed again. If – no, when – he found Eddie, he was going to strangle him.  But who’s going to watch yours? or,As if a fire and a prison riot weren't enough for one call, someone from inside manages to take Eddie hostage. It's almost more than Buck can handle.