"Can I come back? Come back home with you and our child?"
"I don't know Louis. I don't know"
Louis got bored in his and Harry's relationship and broke up with Harry after having sex without protection. Leaving Harry pregnant
When their high school planned a reunion while Harry is 6 months pregnant, he saw Louis with a girl, more specifically, his girlfriend.
"You're pregnant? For how long?" Louis asked,
"6 months" 6 months of being alone while Louis had fun and Harry was left to struggle
"We broke up 6 months ago and you're pregnant!? Ha! You're such a slut." He started walking away but he stopped and turned to face Harry again, "who's the unlucky father who had to stay with a person like you?"
"I'm a single parent"
"So he ran away? I'd do the same"
"How dare you!!! You're the freaking father Lou! Stop saying I'm a slut."
"MY baby will grow up without knowing you!"
Louis was shocked and he just watched Harry leave.