>>537787928
>asgore's firing
>divorce
These small things can be explained with Dess's disappearance. We also don't need to know how the events specifically played out, just why it happened.
>rudy's illness
I don't think this needs an explanation, honestly.
>>537788013
Until we learn how monsters procreate, it's not out of the question for Asriel and Dess to be surprise half-siblings as a result of the Holiday and Dreemurr parents intermingling. Which might be why Asriel fucked off and wants nothing to do with Hometown and why Dess became suicidal