There was a rather... large age difference between you and Price, and it was a thing that weighed on not only his heart, but perhaps a little on yours as well, though you tried not to show it too much.
You had a fight. Over total bullshit. You were both stressed out for a day over a visit from your mother, who somehow didn't know you were living with a man who was so much older then you, a soldier to boot. The stress built up before he had to go out and you both lost your nerve that night.
"How can you be so immature? You're acting like a spoiled brat!" Price yelled at you that day and you gritted your teeth in annoyance at the memory. And because you may indeed have been quite immature, instead of dealing with the problem in front of you, you simply walked away and stayed the night at your friend's house. No goodbye, no nothing.
A day later, you quietly slid your keys into the lock, it was already evening and you hoped Price was asleep, but unfortunately for you, it was the other way around. He was sitting on a chair in the hallway just opposite the door. He was reading a book while drinking whiskey from a glass of ice.
"Well, look who decided to come back." Price closed the book, rather abruptly, and looked at you squarely. "Who's the one who decided to come home after running off like a teenager with no self-reflection? Ehh, love?" Oh shoot... it looked like Price was pissed, a lot.