Ths is one of the only two episodes where we get to see Hank Summers and it's clear he was character assassinated after his last appearance in When She Was Bad. It's a shame that a show that likes to beak the mould eg turning the stereotypical dumb blonde victim into a monster killer, still perpetuates the stereotype that divorce is a terrible thing.
Divorce is often viewed negatively because it is the result of a marriage breaking down, despite the fact that it is actually the mechanism for freeing two people from a marriage in which one or both participants are unhappy. The matter can get complicated, particularly when there are children and pets involved, and it can get nasty in regards to money. However, it's not the divorce itself which is the problem, but the terms of agreeing the divorce.
In movies and tv, divorce is usually presented one of two ways: either the couple (usually parents of a character) get back together by the end, or one parent vanishes and is never seen again.
Buffy initially seems to subvert this with Hank and Joyce. They're divorced but it is very amicable and Hank makes an effort to spend time with Buffy. She even spends the whole summer with him between Seasons 1 and 2 where e expresses concern to Joyce that Buffy seemed "distant". One of Buffy's nightmares is that she's the reason her parents divorced and Hank confirms this, however it's clear by the end of the episode that Hank does not feel that way at all and is very happy to be spending time with his daughter. In Season 2, when Hank is unable to take Buffy to the ice show (which has been a tradition with them), he still sends her the tickets so she can go with someone else. It's not that he can't be bothered, he literally isn't available due to work.
However, the show falls into the trap of making Hank disappear from Buffy's life for good and he doesn't care about her anymore. Hank just seems like one more casualty of the writers forcing Dawn into the show and trying to push Giles as a Father substitute. There's no reason why both Hank and Giles couldn't play fatherly roles in Buffy's life. It's a shame because in this episode you can still see Hank trying to be a good father to Buffy which is a far cry from Season 5 where he can't be bothered to contact his daughter(s) after Joyce dies.
Also we have the kid from Dante's Peak.