EXCLUSIVE: The REAL reason why Reggie Bush and Kim Kardashian broke up...Chick is Skanless!

By now you've been hearing all kinds of rumors about why NFL baller Reggie Bush broke up with Kim Kardashian.

Well I just learned the real reason, and it's because Kim slept with Kanye West!

Here's what happened. According to an extremely reliable insider, Reggie and Kim were on the verge of getting married. Reggie even went so far as to buy her a ring and was waiting for the right time and place to pop the question.

Well one day Reggie was using Kim's laptop when all of a sudden some IMs came over from Kanye West. Reggie played it cool, answered them like he was Kim, and came to find out that Kanye and Kim were getting it popping for months! All behind Reggie's back.

The insider told me that Reggie confronted Kim about the messages, and she admitted to having the affair. Once Reggie heard that, he left her.

Now that's scandalous! But after seeing those tapes with Ray J, what would you expect?