(I'm not proud of this but hopefully it entertains you or whatever books do).
It seemed like that was it, and the conversation was done, but then Papyrus started crying.
Undyne didn't really like hugging people, but she hugged Sans' brother anyway, who immediately leaned up against her. It would be considered a hug if his arms weren't at his side. Sans also joined in the embrace.
"What's wrong now?" Undyne questioned. It sounded like she was impatient or mad, but she was really just anxious and frustrated that her friend didn't seem to be feeling better.
"I don't know," he answered.
"How do you not know?"
"I don't know that either. All I know is that I'm confused. I... I feel like I'm being controlled. Like I'm not me."
Not being able to relate, Sans and Undyne didn't know how to respond.
It got even worse when Papyrus cried more.
Luckily though, Sans had a great idea. At least, he thought it was great.
Smiling slightly, Sans looked at his brother, catching his attention. He slowly asked, "What if we take you to therapy?"
"That's a stupid idea."
Sans chuckled at his brother's honesty. "Sure, it sounds stupid, but is there a chance it won't be?"
"Nope."
Sans chuckled again. He found his brother's uncharacteristic rudeness oddly funny. "Well, I'm going to see if I can set you up for a session later today."
"Please don't."
Undyne also was enjoying Papyrus' change in mood. "Papyrus, it's going to be fine."
Everyone stopped smiling when Papyrus said this: "How do you know? You know nothing about me."
In fact, they frowned. "W-what do you mean I know nothing about you...?" Undyne asked.
Papyrus heard his voice growing more and more bitter by the second. Why though? "I mean you know nothing. You don't understand. Neither of you even knew until I told you, so you can't possibly know what will help me."
Sans wouldn't let his brother feel this way. "But Papyrus-"
"But nothing," he snapped. He immediately was filled with guilt. What was wrong with him? Why was he so mad? Why couldn't he just cheer up? And lo and behold, he was crying again.
He had no right to cry. He was being a jerk. He couldn't feel sorry for himself. He didn't know what to feel, and he silently went up to his room.
Sans had actually done it. Despite Papyrus' refusal, Sans had set him up for a therapy session with some stranger who apparently knew a lot about depression.
Sans was in the room with him, so hopefully he wouldn't have to do any talking.
All of the session was just the man, who was named Stone Edge, talking with Sans.
Until it wasn't.
"So Papyrus, what do you think?" The gravely voice asked.
"...Think about what?" Papyrus would expect him to at least be specific.
"Can we do this crossword?" Stone Edge, who looked nothing like the edge of a stone, but more like a piece of wood with eyes and arms, pointed to a sheet of paper with a bunch of boxes and words.
Papyrus wasn't going to admit it, but that actually sounded fun. So he said, "Yeah."
Papyrus started working on the crossword. In only 5 minutes he had completed it.
"Now let's see here..." the odd guy picked up the puzzle Papyrus had done. He scanned the paper. "Pretty good. You got only one thing wrong."
Only one thing wrong? What was that supposed to mean? Normally Papyrus aced crosswords. Getting one thing wrong was an embarrassment.
The best person ever, 7 letters. He had written down Papyrus. His name was now being erased and replaced with StonEdg.
Wow.
"Haha," the sentient lumber chortled, "Just kiddin'!"
Papyrus tried his hardest to laugh but it wasn't funny at all. The so-called therapist didn't notice and kept talking.
Luckily the session ended soon after.
Sans opened up the door to the house and flopped onto the couch as if he was a fish. As if he was Undyne. Papyrus was proud of the joke he just made.
"So, Papyrus," Sans said, very relaxed, "Was that fun? Wanna go again tomorrow?"
Papyrus had just stepped into the house, and sat on the very small part of the couch that wasn't currently occupied by Sans. He was happy that was over. It had been a long 20 minutes, which is why he answered with "Absolutely not."
Sans somehow fell off the couch. It was pretty funny, and almost made Papyrus grin. He clearly didn't expect that answer.
"Why not?" Sans looked upset.
Was he being serious? "That was terrible! That person destroyed my crossword!"
"Bro, it was just one word."
"Yes, but it was incredibly rude!"
"It was a joke."
"And I hated it!"
Sans groaned. "Why are you so mad?"
"I don't know!" Why didn't he know anything? What was even happening? This didn't normally happen! He wasn't normally this worked up!
He couldn't do this.
Once again, tears ran down his face, but this time, Sans didn't try to help.
Of course he didn't.