su ex

their ex

→ su
phrase Rare #32,902
their ex Used for a former boyfriend, girlfriend, spouse, or partner. The possessive changes with context: su ex can mean his ex, her ex, or your ex.
SP: Mi amigo todavía habla con su ex.
EN: My friend still talks to his ex.

Y aunque reconoce a su ex, por su pelo largo, no recuerda su nombre.

And although he recognizes his ex by her long hair, he doesn't remember her name.

— It's Such a Beautiful Day (2012)

Llama a su ex y quedan a la hora de comer, tras su chequeo.

He calls his ex and they arrange to meet at lunchtime, after his check-up.

— It's Such a Beautiful Day (2012)

Ella extraña a su ex.

She misses her ex.

Su ex.

Her ex.

— Perfectos desconocidos (2016)

Tom ha vuelto con su ex.

Tom has gotten back together with his ex.

Técnicamente no deberíamos llamarlo su ex.

Technically, we shouldn't call him her ex.

— Eternity (2025)

Volvió con su ex.

She got back with her ex.

Esta mañana no recordaba cuándo había sido la última visita de su ex.

This morning she couldn't remember when her ex had last visited.

— It's Such a Beautiful Day (2012)