Sleep with ex fiancee

I slept with my ex after 6 months of iur separation. Since we separated I moved away to a city 3 hours away (miami) but now i went back to get some stuff i have left behind *which was almost everything. Our break up was a bit of ugly and onky now we also were prepared to see each other and be civilezed. But what now? Is there a talk? Is there anything? Ir it was just sex?