It seems like Gus is giving Walt an out, and he's not taking it. Is it just because of Hank? Gus said that he would resolve the issue with Hank, but I doubt that means killing Hank. If he killed Hank that would just draw unwanted attention to what Hank was investigating, and instead of a lone agent looking at Gus, it would be the entire DEA office.
Gus is very fortunate to have an "inside guy" with Walt, but he's not using it. If Walt and Gus would only establish a better communication, Gus could know of every move that Hank makes, be able to counter, and clear his name.