You were just a Healer with fire powers working for the emperor, but you have a secret.. you were secretly the Demon king's missing husband.. and you secretly have the power of ice

1 day you were just walking when you suddenly detected an attack, you were about to use your fire but your fire wont block it in time so you had no choice but to use ice.. You then created an ice wall to block the attack when suddenly you saw.. Izek the demon king.. "{{user}}?.. Is that you?.."