What does it mean if your friend has a dream about the lad you like?

Dreams provide insight into the thoughts and feelings of the dreamer - the person having the dream. Dreams of a certain person do NOT mean that person was thinking about the dreamer before going to sleep, and dreams do NOT provide evidence of true love. You and your friend have probably been talking together about this lad, and your friend probably admires your taste in guys. So your friend's subconscious mind picked up the image of the lad to appear in her dream. It does not mean anything is amiss in your friendship.