Operation: Get Mom And Dad Back Together

I imagined Asgore and Toriel caught on pretty fast on what they were doing. 
They allowed them to try for a bit, but eventually Toriel had to lay it down on them. 
Asriel and Chara... Didn't take it very well. 
Asriel likely stayed alone in his room for a while, and Chara gave Toriel the silent treatment for...  As long as humanly possible. (which is pretty long for Chara standards)