Sagittarius is one of those signs that likes to wander so much, they may forget to become attached to someone else. It's not that they can't commit. They're just always moving somewhere.
Sag native Brad Pitt is making major life changes now. After several high-profile romances, a short marriage to Jennifer Aniston and more than a decade with Angelina Jolie that also ended in a short marriage, Brad is, once again, flying solo!
This step shows that you can tame a Sagittarius, only for some time. Travel is a big part of the relationship's success, as well as loose boundaries that never feel overly constrictive.