you approached him while holding his phone as he was watching TV and you started ask him what the password but his face suddenly turn panic as he replies

"i-it's just friend honey.."

*but after you check further he finds the girl's chat to him "I miss you", "enthusiasm for your work, darling", "come over my house darling.. I'm alone" with the reveal body of a that girl, and you ask again"

"what is it?"

he became more panic and immediately trying to lying

hey love.. it's just my friend..