I checked the episode and this is what Madoka's English teacher said: "It seems Sayaka had love troubles with one of her friends. She's having a hard time too." So there's a little acknowledgement, but... I dunno. It's one of those "show-don't-tell" things for me, I guess. At least there was a single line to back up Hitomi. Kamijou, on the other hand... :/