When I first read the book, I would never say that I trusted him. I was not extremely suspicious of him either. Rather, although he was obviously gaining trust with Frodo and although Tolkien was trying to make the reader trust him a bit, I felt that at any moment, at the slighest provocation, his good behavior could screech to a halt and he could plunge once again deep into Gollumity. It felt rather akin to watching a just-rehabilitated alcoholic go to a kegger with one friend keeping him away from the beverages and another putting him down and encouraging him to drink up.

I dont think you can blame Smeagol he was simply in the wrong pool at the wrong time. It could have been any of the "river folk" as Gandalf called them

(Going to original question)

I pity gollum, but never trusted him.

gollum= [img]smilies/evil.gif[/img]