No way, I totally believe that Sawyer loves Kate. Sawyer said so when he was in the middle of his fever from the bullet wound in his shoulder. The mind might talk nonsense during a fever, but it doesn't make up lies. He does love her and he's a big, bad, conman but with Kate he's a pussycat. He lets her use him because he loves her so much, he'll take what he can get.

__________________
"Helen, do you remember that authentic Australian walkabout I told you about?"