Unsociables.

Daisy Watson didn't need anybody, she didn't need love. After watching her parents divorce, she didn't want any, either.
...
Calum Hood was lonely. After what happened with Rose, he swore he would never love someone again. But, as soon as he saw Daisy, his tongue tied and his hands went numb. Only she made him feel that way, and that was just by her looks. Who knows what spell she could put him under.
...