Cheating in Spanish? Sorry, It's My Mother TongueEpisode 4

Synopsis

Lily pretends to be a naive Midwest‑born girlfriend for her boyfriend Julian. Little does he know she’s a wealthy Argentinian heiress fluent in Spanish. At a dinner party, Julian and her best friend openly cheat and mock her in Spanish, thinking she understands nothing. Heartbroken, Lily uncovers their betrayal. As secrets spill, the scorned heiress rises to take power, leaving her unfaithful ex reeling.