Pieper, a 30-year-old lumber trader from Portland, OR, had proposed to Shea -- and she had accepted -- during Bachelor Pad's third-season finale, which was filmed in early September and had aired on September 10.
Shortly thereafter, Shea, a 34-year-old aesthetician from Charlotte, NC, relocated to Portland and moved-in with Pieper and his young son Taylor.
"It was like a fairy tale at first when we were on the show and afterward," Pieper told People.
"It was like a vacation -- we were in the honeymoon stage. Then when she moved here, it was really difficult for both of us. Blakeley had to start over a new life -- there were so many stresses. The honeymoon stage drifted away. We were both going through the motions and we weren't as happy as we could have been. It was a mutual decision [to end our relationship]."
According to Pieper, the pair sought help before calling it quits.
"We had a counseling session," he told People.
Shea has reportedly returned to Charlotte.
"I really hope we'll stay friends," Pieper said. "Right now, it's really hard. But I'll always love her."
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