As we've mentioned, freedom is important for Sagittarius and Aries, and that includes freedom from each other, too. Understanding this about their partner brings them even closer together. If you know a couple like this, there's a high chance they won't even put a label on their relationship. They tend to hate the idea of settling down and becoming what they deem as boring.
This couple can have issues if they don't make the most of the high-energy relationship they have. If they sit around resting on their laurels, they'll use the leftover energy and passion to be negative or end up having a huge fight. These two should always be planning new trips, supporting each other's ambitions, trying to be creative, and thinking about the future if they want to thrive as a couple.