Ah, gotcha!
She's upset in the first image because she went through all the trouble of buying roses and shrinking herself to surprise her SW-loving boyfriend for his birthday, but he mentions that she's not small enough for his liking, which is why she looks a bit annoyed.
But when she agrees to let him shrink her until she is "small enough" in the second image, and he gets himself undressed like she is, and she sees how "big" he is, then she smiles and realizes that "Hey, maybe there's something to this whole 'shrunken woman' fantasy, after all."
Hope that clears things up lol. Great images, thanks for sharing!