Behold, the most damaging deleted scene of all time.
The removal of this scene fundamentally alters the relationship Lilo has with Stitch in their early stages, reducing her affection to Stitch to her simply being a nice girl.
This scene establishes her patience and always blindly optimistic attitude towards Stitch as transference from her parents, contextualizing their entire relationship.
“I needed you.”
As for the sadness of the scene, it is nothing that can’t be found in Fox and Hound, or many of the other Disney Renaissance Film.