"Do not be unequally yoked together with unbelievers. For what fellowship has righteousness with lawlessness? And what communion has light with darkness?" 2 Cor. 6:14
What does "unequally yoked" mean to you? Some believe it just means you can't marry someone who isn't a believer, however I would never call someone a "best friend" if they aren't progressing in their faith. I believe we are called to reach out into the world, but should we rely so closely on someone who doesn't believe Christ is their Savior. Or should you even engage in a dating relationship where the boy isn't leading, or isn't stronger. Just some thoughts for today.
What does this verse mean to you? How strict are you on engaging in intimate (meaning anything past a friend) relationships with non-believers? Go read the whole chapter and see if it sheds anymore light with you. Please, tell me what you think.