Question

highlight or underline the line(s) that show why oberon is angry with titania.
puck
the king doth keep his revels here to-night:
take heed the queen come not within his sight;
for oberon is passing fell and wrath,
because that she as her attendant hath
a lovely boy, stolen from an indian king;
she never had so sweet a changeling;
and jealous oberon would have the child
knight of his train, to trace the forests wild;
but she perforce withholds the loved boy,
crowns him with flowers and makes him all her joy:
and now they never meet in grove or green,
by fountain clear, or spangled starlight sheen,
but, they do square, that all their elves for fear
creep into acorn-cups and hide them there.
what does oberon want?

Explanation:

To find why Oberon is angry with Titania, we look for the relevant line. The line "Because that she as her attendant hath / A lovely boy, stolen from an Indian king; / She never had so sweet a changeling;" explains the reason. Oberon wants the changeling boy (the lovely boy stolen from an Indian king) that Titania has as her attendant.

Answer:

The lines explaining why Oberon is angry with Titania are: "Because that she as her attendant hath / A lovely boy, stolen from an Indian king; / She never had so sweet a changeling;". Oberon wants the changeling (the lovely boy) that Titania has.