Why is Scout extra excited about the idea of Dill coming back?

When Dill runs away from his home in Meridian and shows up unexpectedly in chapter 14, Scout is shocked but excited! Life in the Finch house has been tense recently. The trial of Tom Robinson is about to start, the county is worried about what might happen as a result of it, and even Atticus and Aunt Alexandra are grumbling more with each other due to the stress. What's more, Jem has been acting more mature...

When Dill runs away from his home in Meridian and shows up unexpectedly in chapter 14, Scout is shocked but excited! Life in the Finch house has been tense recently. The trial of Tom Robinson is about to start, the county is worried about what might happen as a result of it, and even Atticus and Aunt Alexandra are grumbling more with each other due to the stress. What's more, Jem has been acting more mature and grown up with Scout, so she would be more than happy to have Dill around for support. Scout sings all praises about Dill in the following passage:

"Dill was off again. Beautiful things floated around in his dreamy head. He could read two books to my one, but he preferred the magic of his own inventions. He could add and subtract faster than lightning, but he preferred his own twilight world, a world where babies slept, waiting to be gathered like morning lilies" (144).

Scout loves Dill because she looks up to him and doesn't have to mind him.

Dill also represents good times for Scout. Throughout the school year, Scout is surrounded by adults. There isn't a child with whom she can relate more than Dill. Cecil Jacobs lives on their block, but they aren't best friends like she and Dill are. For most of the year, then, she's stuck with just Jem. As Jem gets more mature, he's not as fun as he used to be. As summer nears each year, though, Scout awakes from her monotonous routine of school and daily life because Dill comes back to town. She describes this time as follows:

"Summer was our best season: it was sleeping on the back screened porch in cots, or trying to sleep in the tree-house; summer was everything good to eat; it was a thousand colors in a parched landscape; but most of all, summer was Dill" (34).

For Scout, everything is better with Dill around.