This scene would be for the film, Tinker Bell of the Lost Boys. This would show us how Tink met Peter Pan, and how she became that stuck-up, snobbish, obnoxious, hot-headed, attention obsessed fairy who is gushing over Peter, how she deliberately abandoned her friends and left Pixie Hollow, and how she became mute.
In the scene, Vidia was turned into a human, went to the mainland to get Lizzy and her Father, Dr. Martin Griffiths, Upon seeing her and as a human, Lizzy wondered why she become one, but the only response is quickly pulled into a hug as Vidia cried for the way she acted to her, (according to the Misunderstanding last year) and had to explain to them that Pixie Hollow is in desperate trouble and they needed to help. She also explained that she and Tink got a huge fight, of how she saw Tink sneaking off again and hanging out with the lost boys who were the boys reported missing from their homes. And with a cocky, pompous boy who seemed to believe he owes Neverland and acted like a tyrant, fighting indians and pirates.
The fight even became worse when Vidia began telling Tink off for sneaking out and stealing that Pixie Dust, she even explained that Queen Clarion made hard decisions to forbid Tinker Bell to build anymore inventions or anymore gadgets to avoid anymore disasters, and even forbidding her to go to the Mainland because Tinkers don't go to the mainland, and because of the misunderstanding and her fascination towards the humans of how she nearly exposed their existence, not to mention how embarrassed it was when she had the misunderstanding to happen either way and was going to reveal herself to Lizzy's father and shout at him anyway without Vidia holding her back.
Vidia tried to reason with her and told her to take those six boys back to their homes but Tink wouldn't listen, stating that they want to stay in Neverland and never want to grow up ever, and she didn't stop yelling at her, she even stated she was better off with the Lost Boys instead of fairies like her, and even worse, she said she thought Vidia had changed but was still a grouchy, jealous, self-observed, pompous jerk to her and that she made her wanted to pull her hair out for the way she acted to her. Vidia slapped Tinker Bell for being that way, and told her to stay out of Pixie Hollow then, putting an end to their short friendship, though Vidia didn't really want Tink to leave.
Lizzy, feeling bad for Vidia knew the feeling, she didn't want to push Tinker Bell away, but it was for the best for both kinds that Tink wasn't meant to be at their house or be in their sight to pretend they've never met and the misunderstanding never happened. It explains why Tink came for a visit and told Lizzy to come with her to Neverland where they would never leave and never grow up forever, but Lizzy stated she couldn't because that'll lead to selfishness and couldn't abandon her father that way. Lizzy and her Father, Dr. Martin agreed to help Vidia, head to Neverland and save Pixie Hollow or even the Pixie Dust they have left. But first they would have to comfort Vidia, as Lizzy hugged her and Martin let Vidia bury her face into his chest to weep as they all embraced.
Any possible dialogue based on this, be my guessed.