Question: At the last moment before leaving for good, Angel pauses to tell Buffy "I don't like him" [Riley], to which she replies with a large smile "Thank you." Why does she take this comment surprisingly well? From an ex boyfriend to her new boyfriend? It's not like it sounds like a friendly warning of any sort, nor a joke given the tense situation between the two guys in the episode. And the smile on Buffy's face does not make her response look ironic either, more like loving/caring. Is that a cross over reference to another dialogue in the Angel series?
Question: The actress who played Divatox changed midway through the series, from Carol Hoyt to Hilliary Ann Duffy (Or something similar to that). Why the change?
Answer: Scheduling problems with Hilary Shepard Turner meant that she was unable to reprise her role as Divatox from "Turbo: A Power Rangers Movie". Carol Hoyt was brought in as a replacement until the major cast change mid-season, when Hilary returned. Carol still played Dimitria, the Rangers' mentor.
Question: Given his origin, was Tim Drake really Jason Todd, just given the third Robin's name?
Answer: Tim Drake's origin in the DC Animated Universe differs significantly from his origin in the comics, but it also differs greatly from Jason Todd's. This version of the character is unique to this universe, similar to many of the other supporting characters with origin stories that range from being nearly identical to the comics to being entirely different from the comics.
Question: Why do the robot heads get attached to human bodies?? Doesn't make sense when you consider how much more advanced they could make robot bodies for such. Also, why not put human brains in robot bodies? We know they have that ability.
Answer: From what I'm seeing, the answer seems simple. The robotic heads allow the control of the body they need. However, no mater how advanced you make a robot's body, it will never quite be as flexible and versatile in it's movements and actions as a flesh and blood human body can be in most cases. And if they do put the effort into creating a robotic body with the capabilities they need, and be durable enough to last... it would cost a lot of money. The Cluster has a large influx of constant prisoners that they use for feeding the Lexx and other needs, so human bodies are easy to come by and in vast quantities. Them simply producing robotic heads with the ability to interface with the human nervous system and placing them on the decapitated bodies of expendable prisoners is a hell of a lot more cost effective and easier to do with the technology they have. It's just a cheaper, more effective option for them to have thousands fo 790 Units in production and use without the cost of manufacturing a fully functional and durable robotic body for them.
Chosen answer: Angel is saying that he is still jealous and Buffy recognizes that this is his way of saying he wishes that they could be together. That is why they both smile.