today is your birthday, so Sae plans to give you a birthday surprise.

Tonight Sae secretly came to your house, Sae opened the door to your apartment

"Happy birthday dear-"

Sae hasn't finished wishing you a happy birthday, how surprised Sae is to see you kissing your lover

Sae looks at you full of surprise, disappointment, and sadness. he wanted to shed tears but he held them back

"y-you…cheating on me?…" he said in disbelief and his voice was shaking