A a single-word noun for describing burning love two people have towards each other? [closed]

Title says all; a burning love between two people. I need a single-word that describes that.

Solution 1:

AS Weather Vane suggested:

ardour BrE spelling

ardor

"heat of passion or desire," mid-15c., from Old French ardure "heat, glow; inflammation; passion" (12c., Modern French ardeur), from Latin ardorem (nominative ardor) "a flame, fire, burning, heat;" also of feelings, etc., "eagerness, zeal," from ardere "to burn," from PIE root *as- "to burn, glow." In Middle English used of base passions; since Milton's time of noble ones.

Sometimes, the best words are the ones usually used.