It was in 2009 that Wacera met Samuel Wanjiru, the 2008 Olympic marathon champion. The two ran at the same track in Nyahururu and soon bonded, with the pair legally marrying in December 2009. This caused relationship issues as Wanjiru already had two children by Terezah Njeri, whom he had married in a traditional ceremony, but not a legal one. Wacera, Njeri and Wanjiru's mother all lived on the same street and frequently argued with Wanjiru, who began drinking in excess and ceased his training. Wacera had a child with Wanjiru around August 2010 called Ann, after Wanjiru's mother. On St. Valentine's Day in 2011 Njeri and Wanjiru publicly reconciled on television and the runner swore that Njeri was his official wife, rather than Wacera.