better half
US /ˈbet.ər ˌhæf/
UK /ˈbet.ər ˌhæf/

1.
media naranja, cónyuge
a person's husband, wife, or long-term partner
:
•
I'm going to ask my better half if she wants to join us for dinner.
Voy a preguntarle a mi media naranja si quiere unirse a nosotros para cenar.
•
He always consults his better half before making big decisions.
Siempre consulta a su media naranja antes de tomar grandes decisiones.