Question

why did orpheus look back to see if eurydice was following him , por favor

Answer 1

First of all, let me tell you that the story about Orpheus is a great one, full of internal fights and entertainment.

Talking about your specific question, i will tell that Orpheus had to look back to see if Eurydice was still on his side, because she didn't respond when he was talking to her and that created some doubts on him.