When we have this kind of internal conflict, we tend to choose partners who aren’t the best for us and who aren’t what we want. In your case, you also may have unconsciously chosen someone who isn’t accessible. Under these circumstances, you don’t have to fear suffocation, imprisonment, compromised integrity, and all the other things that make Aquarius hyperventilate.
In an ironic way, your Venus-Pluto opposition may serve your need for freedom. As long as you obsess about someone, you don’t have to face your demons.