The Hollywood actor, 51, and his wife Jada Pinkett Smith, 48, lift the lid on their personal problems in a dramatic showdown on Red Table Talk last night,.
During the chat, Jada confirmed she’d had a relationship with singer August Alsina, 27, during their marriage.
The showbiz super-couple explained it came during a difficult patch in the marriage around four and a half years ago.
Smith admitted he was convinced the marriage was over and he never wanted to speak to his wife again.
During the Red Table Talk, he explained how August came into their lives at the time their marriage had crumbled.
He said: “When Aug first came around, he was really sick. The outpouring for him from our family was initially about his health.
Jada added: “We found all those different resources to help pull from there. You and I were going through difficult time.”
Will explained: “I was done with you… We were gonna separate. You go figure out how to make each other happy… We could be over.”
His wife on to explain she then got into a relationship with August, saying: “From there. As time went on, I got into a different kind of entanglement.
“You giving permission only circumstance is myself. August was probably trying to communicate, I could see how he would perceive it as permission as we were separated amicably. He wanted to make it clear he’s not a home wrecker. Which he’s not.”
However, the pair pater decided to give their marriage another shot and Smith said it was a “miracle” they were able to patch things up.
He explained: “I wasn’t sure I was ever gonna speak to you again. It’s a miracle. Certain things you have to go through…
“There’s a real power. I’m gonna get you back. I said I can love you through anything.”
It comes after August’s bombshell interview about his romance with Jada.
In a YouTube interview with Angela Yee, he claimed: “I actually sat down with Will [Smith] and had a conversation due to the transformation from their marriage to life partnership…
“He gave me his blessing.
“When asked about the alleged affair with Jada, August said: “I totally gave myself to that relationship for years of my life, and I truly and really, really deeply love and have a ton of love for her.
“I devoted myself to it, I gave my full self to it – so much so to the point that I can die right now and be okay with knowing that I truly gave myself to somebody.”