Everyone ships phan-a dan and phil fanfic

Chapter 16-phone calls

Phil awoke, he looked around. Dan wasn't next to him?
He walked out the door, to see Dan on the phone.
"Who the fuck is this?!" Dan yelled
"No....what the hell?!....shut up and get out of my life!" Dan slammed down the phone, before putting his head in his hands.
"Who....who was it?" Phil asked cautiously
"Don't worry"
"What did they say"
"Just a load of BS. If we get any calls, just ignore them." He took a deep breath.

Hours passed. Dan and Phil had just been cuddled up on the sofa, watching a movie, when Dan decided that he needed to go to the supermarket and get food.

Again, Phil was alone. He didn't feel scared, he just felt lonely. Even though Dan had just gone down to the supermarket, he missed him.
The phone rang.
Phil debated whether he should answer or not, Dan had told him not to, yet what if it was Dan calling? He better check, just in case.
"Hello?"
"Hello Daniel" a female voice spoke on the other end
"No...this isn't Dan, I can take a message though"
"Who is this then?"
"My names Phil"
"Alright then Phil. Can you please tell Danny to text me later? Thank you" she hung up

Dan returned home an hour later, carrying a few grocery bags.
Phil helped Dan put the food away, before telling him about the call.
"There was a call for you."
Dan immediately looked up at phil worriedly "What?"
"A girl called. She wanted you to text her"
"What the fuck did i tell you Phil! I told you not to answer the fucking phone!" Dan glared at Phil, before giving in, he was too innocent to hate. "Just....don't answer the phone again"
Dan grabbed his phone and walked into the bedroom. Leaving Phil speechless.

Who was the girl on the phone?

And why was Dan annoyed about it?