She was supposed to be in Orlando with her parents. Gardner, 35, told Forester, 40, she couldn't talk, but the next morning she emailed him to say her parents had surprised her with a family trip to Aruba, Forester tells PEOPLE.
That was Monday, Aug. 1. The following day, at 2:05 a.m., she posted a message on his Facebook wall saying simply, "This sucks." He wrote back, "inbox me." Then, 10 hours later, he wrote "Where r u baby??"
"I emailed her the rest of the day trying to get in touch with her," says Forester, a Washington, D.C., headhunter. "She sent me an inbox message on Facebook around 3 p.m. Tuesday, saying, 'Don't worry. I care about you I love you we'll talk and sort things out when I got back,' " he says.
That was the last communication Forester had from her.
Three hours later, Gary Giordano, the man with whom Gardner had traveled to Aruba, told authorities she went missing while they were snorkeling.