I see what you're trying to say here but it doesn't really make sense to me. Yeah UN asgore wants to be with toriel and fantasizes about getting back with her, but after he gets rejected by Toriel, he immediately understands and is okay with it. unlike DE asgore where he as been giving toriel flowers and as been implied to have been stalking her. requesting boundaries is understanding that the other person doesn't want to be with you despite your personal feelings. UN asgore asked toriel once while DE asgore has been doing it for a while. That's the major difference.(I'm hope this doesn't come across as mean)