Dewani, 34, was accused of hiring hitmen to get his bride Anni Hindocha killed during their honeymoon but was acquitted yesterday by Western Cape High Court Deputy Judge Jeanette Traverso who threw out the high-profile case even before he started his defence against the accusation.
In a statement today, Anni's uncle Ashok Hindocha said she would never have married Dewani if she had known about "his secret sex life with male prostitutes".
"We would have preferred to have known about his sexuality before he married our precious Anni. She gave herself to him, mind, body and soul, and she hoped to have been cherished and loved," Hindocha said.
Anni's family also confirmed they are seeking legal advice about instituting a civil action against Dewani.
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"We will now go through this case with our lawyers to confirm whether we can file a lawsuit against Shrien Dewani in the UK," he said.
He looked calm and self-composed as he walked into the airport. Wearing a tight white shirt and dark jeans, Dewani stared resolutely ahead as police officers helped him through the waiting media scrum.
The millionaire businessman faced a barrage of questions from reporters as he headed straight for the boarding gate.
He boarded an Emirates flight headed to Dubai and is believed to reach the UK from there.
Dewani was accused of hiring three men -- taxi driver Zola Tongo, Mziwamadoda Qwabe and Xolile Mngeni -- to kill Anni on their honeymoon in South Africa in 2010. Anni was kidnapped and then murdered in Gugulethu township near Cape Town on November 13, 2010.
Dewani lost a four-year legal battle in the UK to avoid extradition to South Africa, and was sent in April this year to stand trial.