No, Jennifer Aniston did not keep her dear old dad in the dark about her very happy recent news.

When news broke Sunday night that the 43-year-old star is now engaged to Justin Theroux -- reps for both Aniston and Theroux confirmed to Us Weekly -- her father, John Aniston, claimed ignorance to Celebuzz.

"It's the first I've heard about it," the Days of Our Lives actor, 79, is quoted as saying. "It's a surprise to me."

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But the truth is more complicated than that, Jennifer Aniston's rep explains exclusively to Us. Her father knew about the engagement prior to Sunday night's big announcement -- but was wary of accidentally letting the secret slip.

He "thought he was being trapped on the phone so played dumb to be safe," the rep explains exclusively to Us.

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The Emmy-winning actress is the only daughter of John and ex-wife Nancy Dow.

Divorced from Brad Pitt since 2005, Aniston and Wanderlust costar Theroux (he proposed on Friday, his 41st birthday) have been dating for a year and a half. They were last photographed together on the Wilmington, NC set of her latest film, We're the Millers.

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"Justin Theroux had an amazing birthday Friday, receiving an extraordinary gift when his girlfriend, Jennifer Aniston, accepted his proposal of marriage," Theroux's rep said in a statement.

This article originally appeared on Jennifer Aniston's Dad DID Know About Justin Theroux Engagement