Related Clues:

• Moonstruck
• One way to fall
• Smitten
• Totally smitten
• Head over heels
• Under Cupid's spell
• Swept off one's feet
• 'When I Fall __'
• Starry-eyed
• See 1 Across
• Gaga
• Besotted
• Filled with romantic feeling for someone
• Consumed by romantic passion
• Hard to separate, perhaps