There are several reasons why the gods might have allowed Orpheus and Eurydice to be reunited, according to the search results:

• Orpheuss music: Orpheus was a gifted musician, and his music was said to be so beautiful that it could move even the gods. It is possible that the gods were moved by his music and allowed him to reunite with Eurydice as a reward.

• Orpheuss love for Eurydice: Orpheuss love for Eurydice was so great that he was willing to risk his life to bring her back from the dead. His love and determination may have impressed the gods and convinced them to let him and Eurydice be together.

• The power of love: The myth of Orpheus and Eurydice is a story about the power of love. The gods may have allowed them to be reunited to teach us that love is a powerful force that can overcome even death.

• Test of faith and obedience: Hades had agreed to let Eurydice follow Orpheus out of the underworld, but on one condition: Orpheus must not look back at her until they had both reached the surface. Orpheus promised, but as they were nearing the exit, he could not resist turning to look at her. As soon as he did, she vanished back into the underworld forever. Orpheuss decision to look back shows that he lacked faith and obedience, and the gods may have allowed them to be reunited as a test of these qualities.

In summary, the gods may have allowed Orpheus and Eurydice to be reunited due to Orpheuss music, his love for Eurydice, the power of love, and as a test of faith and obedience.