"[...] the fear of loss, drives so much of our behavior. [...] the fact that we're so terrified of the worst case scenario ensures we have little bargaining power.
That's a shame, because as soon as you consider (I mean really consider) the possibility of walking away it changes everything. It changes your your confidence, your creativity, your strength...essentially your ability to be effective in the relationship.
That doesn't mean you should walk away...it just means that just your ability to ask (and answer) the question, "What would happen if I did walk away, leave, or didn't care about the outcome? puts you in a powerful position."
When it comes to this love business, being 'committed but not attached' is a healthy space to hold in order to hold your own and avoid deferring your power to the significant other with whom you're orbiting.
Clinging to a desired outcome in some imaginary future or acting out of fear of losing what you have doesn't support all that can be in the moment-at-large-and-present. It deters and restricts the expansive spontaneity of what is in front of you now. Being unattached to outcome informs a much stronger and much more clear future of possibility.