"From a Westernised way of living – the way I grew up living – it's a weird concept," Williams told The Saturday Telegraph.
"Straight away we said we're going to do it Islamically correct, so even in that first four weeks I wasn't with her by myself, we always had a chaperone."
Williams and Raffie took the plunge and exchanged vows one month after meeting, hopeful love would develop over time.
They now have four children together, and the 36-year-old credits their dedication to Islam for ending his days as a womaniser.
"She grew to love my faults, I grew to love her faults, we grew to love each other's strengths," Williams said.
"I won't lie, one of the biggest tests for me was women. But the discipline I've had and my sporting career, in my life, I've been able to turn that around and strive to be authentic and be a good man, and trying to be the best husband I could be.
"Our shared faith and living for something greater than oneself is what I put it down to.
"Our life is a work in progress, me and my wife. It's not all roses, but we have moments of really good times."
