After carefully examining the provided text, the English translation while maintaining the exact number of lines as the original Korean text is as follows:

Do Han, having dropped off Sa Rang at the promised location, stopped the car when he heard an unfamiliar cellphone ringing from the passenger seat.

It seemed Sa Rang had hurriedly left it behind.

The caller was her mother.

Unable to answer the call, yet worried about not responding, Do Han had no choice but to turn the car around and head back to the restaurant where he had dropped her off.

Planning to just return the phone and leave, he searched for the table where she would be sitting, only to witness an unbelievable scene.

Her meeting partners were Kang Ji Woo and Jeong Yoon Jae.

It wasn’t a big problem that those two were there, but the absurdity was seeing them sitting together right in front of Sa Rang.

Even more unbelievable was Sa Rang capturing their intimate moment with her phone’s camera.

What on earth was happening?

“Wha-what….”

Sa Rang’s face turned pale as if she had seen a ghost.

Do Han quietly observed her, then extended his hand.

“Your phone was in the car.”

“Oh.”

Receiving her phone from Do Han, Sa Rang glanced at Ji Woo and Yoon Jae.

Both seemed just as flustered, uneasily looking at each other.

No one seemed to have an excuse for the situation.

So far, the story was that Sa Rang and Yoon Jae were dating, and Yoon Jae was cheating with Ji Woo.

Sa Rang was unaware of this, or so Do Han knew.

But now, Yoon Jae and Ji Woo looked unmistakably like a couple.

And Sa Rang was just a friend to them.

Eventually, Do Han discovered the whole truth.

The three realized their lies had come to an end. None could utter a word.

“Seems like it’s someone’s birthday. Sorry for interrupting.”

Do Han, regaining his composure, shifted his gaze from the cake box to Sa Rang.

“I’ll be going then.”

There seemed to be a cold wind in his indifferent eyes.

Sa Rang’s fingers grew cold, and a chill ran through her body.

As he left the restaurant, Ji Woo let out a big sigh.

“That was close. You came here in his car?”

“Yeah….”

Sa Rang nodded blankly.

The last look he gave her lingered in her mind.

She couldn’t decipher its meaning.

Disappointment? Resentment? Perhaps resignation.

Lost in thought, Sa Rang was in front of the surprised Ji Woo and Yoon Jae.

“Maybe it’s for the best. Now that he knows we deceived him, he’ll come to his senses.”

“He looked quite shocked.”

“Is that so? Compared to what he did to Sa Rang….”

Before Ji Woo could finish, Sa Rang abruptly stood up.

Ji Woo and Yoon Jae looked up at the same time.

“I need to step out for a moment.”

“What? You’re not thinking of going to Do Han, are you?”

Ji Woo’s voice rose in alarm.

She was about to object, but Sa Rang had already stormed out.

“Hey! Sa Rang!”

Ji Woo tried to stop her, but Yoon Jae held him back.

“Let them sort it out.”

“How can you say that? It’s Do Han we’re talking about!”

Ji Woo was already anxious.

He had feared this day would come ever since Do Han said he was on the same team as Sa Rang.
The provided text in Korean has been translated verbatim into English, maintaining the same number of lines as the original:

So, Ji Woo had lied about Yoon Jae being Sa Rang’s boyfriend and brought her all the way here.

Now it was all pointless.

“That fool, she has fallen for Do Han again,” Ji Woo grumbled.

“What is she thinking?”

But then, it wasn’t “again.”

Sa Rang had liked Do Han since she first met him at twenty and never stopped since.

Maybe it’s Sa Rang who is the relentless one, not Do Han.

Ji Woo sighed, watching Sa Rang hastily exit the restaurant.

Her chest felt tight, as if it was constricted.

“Do Han!”

Sa Rang, who ran to the parking lot, called out loudly to Do Han as he was about to get into his car.

Hearing her, he stopped and turned around.

He watched Sa Rang approach, panting, and then closed the door of the driver’s seat.

After catching her breath, she struggled to speak.

“I’m sorry.”

“For what?”

“For lying. I intended to just say Yoon Jae was my boyfriend, but then things escalated…”

And got out of hand.

A lie, once started, grew bigger and bigger.

Until it couldn’t be sustained and burst.

Excess always leads to downfall.

“Is it also a lie that you live next door?”

Do Han was confused about what was true and what was false.

It was hard to distinguish what to believe and what to disregard.

“That’s true. Yoon Jae moved in earlier this year. It’s risky for two women to live alone.”

Regretfully, Sa Rang added more details.

She couldn’t even lift her head, finding herself ridiculous for trying to clear the misunderstanding now.

“Since when have you been dating Jeong Yoon Jae and Kang Ji Woo?”

“Since Ji Woo’s senior year. About three years now.”

Do Han involuntarily gasped.

“Even so, to date a guy your friend had…”

“No! I’ve never dated Yoon Jae.”

“What?”

Do Han had naturally thought they were a couple.