Saturn in Aries comes alive in the face of difficulty and danger, and in a couple may switch off when there is no challenge. Without a challenge to stir them, they may lose interest and seem apathetic.
If you ask them whether they enjoy risk, they might say no; yet faced with a challenge they may throw themselves in quickly. The image of walking on a razor’s edge expresses that attraction to what is difficult and to the intensity of the moment.
In finances they may alternate periods of security with decisions that bring in uncertainty, because stability ends up seeming unexciting to them. The question is what excites them: what they want to undertake, or the thrill of putting something at stake again?