Sarah Michelle Gellar posts mushy #throwback to celebrate 13 YEARS with Freddie Prinze Jr.

Congrats guys - here's to many more years together!

Sarah Michelle Gellar

by Maria Vallahis |

With all the split-ups and divorces in Hollywood, Sarah Michelle Gellar and Freddie Prinze Jr. are disproving all odds as they celebrated their 13 year wedding anniversary yesterday.

Sarah couldn't help to shout if from the rooftops either and we don't blame her.

In a mushy message on Instagram, accompanied by a throwback snap of herself and hubby Freddie on their wedding day, Sarah wrote: "13 years #happyanniversary.

I love you not only for what you are, but for what I am when I am with you. I love you not only for what you have made of yourself, but for what you are making of me."

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The pair met while working on 1997's teen horror film, *I Know What You Did Last Summer - *they began dating in 2000.

OMG we remember that film like it was yesterday and now we feel really old.

Aww 13 years and going strong.

The Buffy The Vampire Slayer actress and Freddie got married in 2002 in Mexico and have two children together - Charlotte, five, and Rocky, two.

And more recently the film stars played love interests Fred and Daphne in Scooby Doo in 2002.

In another sweet Insta-tribute of Sarah's she wrote about her late *The Crazy Ones *co-star Robin Williams.

Amongst the many celebrities remembering Robin earlier this month, on the anniversary of his death, Sarah lead the tributes with touching image from one of Robin's films.

MTV VMAs 2015 outfits:

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MTV VMAs 2015 outfits

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