Paul Walker's Mother to Vin Diesel: 'You Lost Your Other Half'

Vin Diesel shared a little bit more on how he is coping after the sudden death of his friend and Fast and Furious co-star Paul Walker, posting to his Facebook page on Friday: "When I heard, I immediately flew back to California, and went directly from the plane to his mother's house… I thought they needed my strength, but realized when I got there and broke down before his family, that it was I who needed theirs. His mother hugged me and said I am so sorry… I said sorry? You're the mother who lost a son?… She said yes, but you lost your other half…"

Now we know Diesel sprung into action when he heard the news, heading straight to Walker's mother, Cheryl Walker. Indeed, the late actor's father, Paul Walker Sr., confirmed with members of the media earlier this week that his family received a visit from Diesel, saying the 46-year-old actor had to take a minute to compose himself before stepping out of his car to greet the grieving family.

Diesel has shared his thoughts publicly just a few times since Walker's death, referring to the late actor as his brother in an earlier Facebook post and also showing up to the crash site that claimed Walker's life.

At the site on Monday, Diesel told a crowd of fans, "The love that you've shown Paul, it's going to stay with me forever … Thank you for showing that angel up in heaven how much you appreciate him."

[Related: Vin Diesel's Touching Tributes to 'Brother' Paul Walker]

Meanwhile, Walker's castmate Michelle Rodriguez, has remained relatively quiet and respectful. Like Diesel and also Fast co-star Tyrese, the actress visited Walker's parents, but has otherwise remained out of the public eye.

She has shared only a few thoughts on Twitter, including a note on Thursday that reflected what she's going through in the wake of Walker's passing: "What happens when kindness begins to depart the planet one by one? Is there enough time to learn, evolve, do something, in-between the extinction of kindness and our stint of a lifetime … mortality makes me realize life is not just accumulated moments and memories, some people touch your soul and make you see unconditional love in all it's innocence. In my eyes, Those kind people, are the most powerful forces on the planet ;) You can't run away from feeling Empathy or a sense of mystery in Life can you?"

In contrast, Tyrese has been open and vocal about his grief, his latest tweets spurring fans to donate to Walker's charity.

[Related: New Photo Surfaces: Paul Walker as Best Man in Brother's Wedding]

Just Thursday, Fast actor and rapper Ludacris posted a photo in remembrance of his fallen friend:

Dwayne "The Rock" Johnson simply acknowledged that it's been a tough week:

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