Neither Williams or Mouratoglou have discussed details of their romance publicly, but in an interview with Vogue the 23-time Grand Slam winner admitted Ohanian's acceptance of her ongoing professional relationship with her coach was something they had to work through.
"Once we got over that little hump of weirdness, it was fine," Williams said. "Fortunately I'm really good friends with most everyone I've ever dated. I don't like bad blood."
You can understand why Williams, who insists she is definitely returning to the pro tour after giving birth, is keen to keep Mouratoglou on board.
Lucky for her, as close friend and famous pop singer Ciara told the magazine, Ohanian "is calm and cool".
This has extended to his support of Williams' religion. "Being a Jehovah's Witness is important to me, but I've never really practised it and have been wanting to get into it," Williams told journalist Rob Haskell. "Alexis didn't grow up going to any church, but he's really receptive and even takes the lead. He puts my needs first."
But the 35-year-old New York native - who follows former Williams' flames Drake, Common and Amar'e Stoudemire - isn't the only one making accommodations.
Even though she's currently building a sprawling mansion in Florida - where she has lived for most of her career in sister Venus's home - Williams told Vogue she plans to move to join Ohanian in San Francisco once they're wed.
Having one of the world's greatest athletes close by only inspires Ohanian to work harder, he says.
"One of the best parts of this relationship for me is that it really shattered the tech-bubble illusion that we're the hardest-working people," Ohanian added. "It's amazing how much harder I push myself now because I'm with someone who has even more discipline, even more focus."
The pair have won 10 majors, two Olympic gold medals and spent three-and-a-half years atop the world rankings in their time together.
