An Inconvenience
“I’m responsible for you, kid. You can’t just go around pretending you’re fine. Your aunt almost killed me when she found out!” He shouted.
“Right. Sorry for being an inconvenience to you, Mr. Stark.” He spat, turning his head towards the window.
He tightened his grip around the sheets, sure he was going to rip it.
“An inconvenience? What the hell are you talking about, kid?”
“Nothing. I'm fine now, so you can go back to ignoring me for months. I won’t mind.” He snarled.
Or; Peter has untreated injuries after the battle with Toomes, along with a lot of pent up anger for a certain billionaire.
Takes place during/After Spider-Man: Homecoming.