1. Aphrodite wanted Eros to make Psyche fall in love with an ugly man. Instead, Eros fell in love with Psyche himself.
2. He told Psyche she could live with him as long as she never looked at his face.
3. Aphrodite made Psyche go to get a box of beauty from Persephone. On the way back, Psyche opened it, but the box made her fall into a deep sleep until Eros rescued her.
4. Sometimes yes, sometimes no. Feelings can happen naturally, but people can choose whether to act on them or not.