"They promised to support and love each other and to make each other laugh," a source tells PEOPLE.

By Maggie Coughlan Michelle Tauber
September 12, 2012 11:05 AM
Eric Charbonneau/WireImage

“I do” and then some!

When Blake Lively and Ryan Reynolds got married Sunday in a super secret ceremony in Charleston, S.C., the couple chose to exchange vows they’d written themselves.

“They promised to support and love each other and to make each other laugh,” a source tells PEOPLE in this week’s cover story. The groom “said he would treasure Blake; she said she would adore him. The whole time they were beaming.”

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