Just be assertive. Make plans to go out. Not easy when children are involved but start creating a new relationship. You mention that you both like geocaching (Though I have no clue what that is). Continue to do these things together. It may not seem like much, but spending quality time together without the constraints of father/motherhood can go a long way to repairing a relationship.
SPEAKING from experience here as I lived through this.
Married 10 Together 13 ILYB 1/4/2010 Separated: 1/4/2010 Moved back in 1/28/2010 Reconciled 3/14/2010