The 6 doesn't always foretell a romantic relationship in my readings. I would look for a card like the Lovers for that. Instead, the 6 carries a very particular soulmate vibe concerning friendships.
In my readings, it's always a sweet card but with a big caveat. The two of you could pop into each other's lives to help each other learn a necessary life lesson. The life lesson might be either delightful and/or painful.
You know the 6 of cups by how the two of you relate to each other. For me, the essence of this 6 is very child-like...in a good way. Think about how young children become friends with each other. It's innocent and it happens very quickly, right?
In adult relationships, it could feel like an instant gravitational pull. You might have become close friends quickly and may have a shocking amount of things in common. The conversations can be really engaging, you might share a lot of laughs, and have fun when you talk to that person. You might even feel somewhere in your heart that you've met this person before. That's the soulmate essence of the 6 in my readings.
Unless other cards say otherwise, the 6 of cups doesn't last forever. It can end badly and/or abruptly. It could also progress to something more. But, I always find I come out of a 6 of cups friendship learning a lot about myself that has changed my outlook on friendships and relationships forever.
