"It hurts me to leave you even though I love you like no one else."
Here's a breakdown of the meaning:
* Me duele: This means "It hurts me" or "I am in pain."
* dejarte: This means "to leave you."
* aunque: This means "even though" or "although."
* te quiera: This means "I love you."
* como a nadie: This means "like no one else."
The sentence expresses a deep conflict. The speaker loves the person intensely but feels compelled to leave, causing them significant pain.