SparkNotes: A Midsummer Night’s Dream: Act 2, scene 1: Quick Quiz

Because it's bad luck for them to see one another on the night before their wedding
Because they're very angry with each other
Because they've fallen out of love
Because Oberon has rejected Titania for Hermia

The sleeper will fall in love with the first living thing he or she sees upon waking.
The sleeper will dream of his or her true love.
The sleeper won't wake up until the juice is washed off.
The sleeper will turn into a fairy.

A Midsummer Night’s Dream