Board Thread:Questions and Answers/@comment-35720850-20190928224548

I did neutral route, went on a date with Papyrus and i spared everyone. But i forgot to go to Undyne's house and didn't befriend her. I started fighting Asgore and he broke the mercy button so restarted the game.

My question is: Can i go back to Undyne's house now and befriend her and if i do the thing with Alphys will i get the true pacifist ending? 