Rampage is ducking Machida.
The UFC offered him a title shot and he turned it down in favor of fighting Rashad Evans. This has nothing to do with whether the UFC wanted Evans on The Ultimate Fighter opposite Rampage. He even said it himself, "They told me I could fight whoever and I had my mind set I would fight Evans."
An offer was made and he declined. If he accepted, the UFC would have reached out to Machida and asked him to coach. Or, they would have taken Rampage off the show. A title bout trumps it. After all, the major function of The Ultimate Fighter is to serve as an advertising vehicle for UFC PPVs.
In MMA, opportunities are fleeting. I think this is a huge mistake. While Rampage is wallowing in Ultimate Fighter Limbo, the guy who took his title will be facing Anderson Silva. A win by Forrest Griffin would bump Rampage from the number one contender spot. Coupled with a loss to Evans and Rampage won't sniff a title shot in 2010.
If his goal is to get "his belt" back, he's going about it the wrong way.