Nina opened her mouth, wanting to protest that she'd let them know she was leaving while she was still in the dorm building, but he kept on going, rolling on, until she'd either have had to get loud or shut up and listen.

Because this was Prompto, and she was still confused, she shut up and listened.

It... it sounded an awful lot like he was saying 'I love you' over and over. Like it was 'you're my family' on repeat and, despite what she'd disappeared for two weeks to do that still caught her off guard since she was sure of wanting to be his sister. She was less sure of him wanting to be her brother.

"I'm sorry," she ventured, in a small voice, feeling like she wanted to cry and wanted to start giggling all at once because, like, however he reacted when he found out...

Wasn't this what a brother was supposed to do?