I Love You, Monster: The Blindfolded Wife x The Masked Husband Chapter 112 Since when?

Later that day, Davi left Gray mansion after giving the masked man a peck in his lips. She went to Blue city for her appointment with Mr. Zheng, the old professor in the city lab.
She spent the day taking series of exams until she finally left deep at night. Davi tiredly leaned her head at the back seat the moment she got inside the taxi.
Half part of her head was wondering why Sei didn't came and fetched her this time. And half of it was thinking just how much she wanted to see Sei at that moment, even though not even a day has passed yet. That moment, Davi wanted nothing but to see the man, who was serving as the sun fueling her energy.
However, in the middle of her thinking, her phone rang and the moment she saw who was calling, her eyes widened and she answered it right away.
"Hello? Hinari, you finally called again."
"Why? You're waiting for my call?"
"Of course I am. And when will you come home? I wanted to talk to you about something."
"Heeeh… is it about how to seduce again? Wait… anyway, how was it?"
"Well… wait, are you drunk?"
"Huh? Yes, I am, why?"
The moment Davi heard her answer, she sighed for she was now sure that she's definitely sober. Due to that, she decided to tell her what's bugging her right now since she knew that her great love master will never tell her when will she come home again.
"The truth is, my relationship with him I think does improved a lot."
"Elaborate please my dear student. I wouldn't know what advise I would give if you're like that."
"Okay… I mean, he's always been so good to me, he's always been there when I needed him, he lets me touch him, hug him, kiss him. He is always being considerate of me, he is just letting me do what I wanted, and he's supporting me in whatever I do."
"Ohh… I see… any improvement in bed?"
"Huh? Uhm… Err." Davi's face turned pink as she lowered her voice for the driver not to hear her. "I think, there's improvement as well."
"Like?"
"Hmm… back then, he'll just remained motionless the whole night but now, I think he's embracing me back." The moment those words came out of her mouth, the girl on the other side of the phone released such a long sigh. And after a short silence, the calm volcano suddenly erupted.
"What the hell is that?! It's been two months for heaven's sake! What's with that turtle like development? No! That's snail like development! Argh! I'm so pissed. What kind of man can resist a beauty like you in bed for two months without even doing anything?! Argh! Now I really wanted to meet him and confirm if he's a real man. Maybe he's a girl in-disguise."
"Hey. I already told you right? He's not gay. It's just that he's different."
"Yeah, yeah… I get it. I will not settle down until I see him myself, I'm actually on my way now so better drag your man tomorrow with you and let me meet him. Only then can I give you advice again. You understand?"
"Ehh? You're already home?!"
"Yes, so come over here. I have a lot of things to ask you."
"B-but… I'm on my way home. Okay, I'll go tell him first---"
"You… how deep have you fallen for him?"
"H-huh?" Davi was surprised with Hinari's question that she turned speechless for a while.
"You can't hide anything from me. You definitely sound like you just wanted to see him so much that you're on the rush to go home you little…"
"Eh? How did you know I wanted to see him?"
"Silly question. I could tell even by listening. So? Since when did you fell this hard towards him?" Hinari asked but Davi's mouth just slightly hanged opened upon hearing her.
S-since when did i…?