Michael Vartan -- who famously dated Jennifer Garner during the production of "Alias" before she left him for Ben Affleck -- is getting the boot again ... his wife has filed for divorce.
Lauren Skaar filed legal docs citing irreconcilable differences.
The two met at a Whole Foods in L.A. She says Michael had engaged in some "calculated stalking," with the help of her email address.
The two married 3 years ago. They have no kids.
She's asking for spousal support. She works as a real estate agent and filed for divorce herself ... without a lawyer.
Michael has appeared most recently as a recurring character on "Bates Motel" -- which by the way is awesome.
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