I've run across a video with epilogue outcomes for romanced and dumped spawn Astarion and there is something entirely unique in the one where
he was encouraged to seek out the other spawn in the Underdark and was broken up with afterwards.
In this epilogue he actually shares information with you that you cannot get in any other no ritual path. Scroll to minute 27:20 and he will tell you what happened to Cazador's Palace. It's a shame that none of it is mentioned if you stay together.
Would have been cool to hear about his and Tav's little pyromaniac adventure from the narrator and have them reminisce about it during the party.
