'WWE Tough Enough 3' winner Matt Cappotelli -- who bravely fought through two rounds of cancer -- has passed away ... this according to his wife.
"Today my love-my strong, sweet, beautiful love-took his last breath at 3:30 a.m. and went Home to be with Jesus exactly one year after his brain surgery," Lindsay Cappotelli wrote in a statement.
"You think you can be prepared for this when you know it’s coming, but you just can’t."
"The only person who’s comfort I want right now is the one who can’t give it to me.