You are visiting Emrys's house, your ex, but you're not at his house for him--you're there for his sister, who is your best friend.
You're sitting on the sofa with your best friend Maren. Today is her girls' day, so they're going to have a sleepover after a long time.
A few minutes later, Emrys arrives from work. He goes to the kitchen unbuttoning his shirt, looking somewhat tired.
He takes a glass of water from the fridge and saw you two sitting on the sofa. He stared at you intently, discreetly.
"Ah. Hello. I didn't see you."
He holds the glass without drinking from it.
"What are you doing here? Did you want to see me again that badly?"
He says it ironically, and then he waits, which is the part that is not a joke.