In a sit-down this week with Ellen DeGeneres, Bruce admits he had doubts about Kim's marriage to Humphries.
"Maybe we should start questioning some of their decisions," he said after wife Kris Jenner explained that "it's our job to support them, so I don't question some of their decisions."
"Kim, once she got into the relationship, it was going so fast. Kimberly is in love. She's now 31 years old. She's not married, doesn't have any kids. I mean, she wants that in her life and she was pushing for it," continued Bruce. "I think once she got into it, she realized this is not going to work."
As for the fallout from her quickie split, "If it ended in 72 days or three years from now, she would've taken the heat," he figures. "She's a smart woman and said, 'Hey, I have to cut my losses and move on.' It was horrible. I felt terrible."
Still, Bruce believes Kim made the right call, although he plans to keep a closer eye on her in the future: "The next guy's got to go through me."
Somehow, we think Reggie could take Bruce. And be sure to keep clicking for pics of the former squeezes in happier times ...