Turning to the whole of Beta, it's wonderful to see Daphne and Chaz through new eyes, particularly to see someone looking at the way they complemented each other. It reminds us that in many ways Daphne completed Chaz, right from that very first mission where they were the two to run down the gamma, Chaz taking the insane risks - such as shocking himself with the ubertaser in a swimming pool in order to get the gamma, Daphne drawing the insanity back to merely do-or-die. He's missing that other half of himself, and it's difficult to see anyone who can fill that for him with the exception of Hafs. Danny Brady might not let himself progress to self-harm, even inadvertent self-harm, and Mom and Dad will also step in when they realise things are amiss, but none of the others can plug those holes that complete him. Only Hafs can do that. 

Without either of them, Chaz is back to being the permanent outsider, looking out at the world through feral coyote eyes.