I think this handles CLOSED messages better.

subscription.go

@@ -110,9 +110,9 @@ func (sub *Subscription) dispatchEose() {
 func (sub *Subscription) handleClosed(reason string) {
 	go func() {
 		sub.ClosedReason <- reason
-	}()
 		sub.live.Store(false) // set this so we don't send an unnecessary CLOSE to the relay
 		sub.Unsub()
+	}()
 }
 
 // Unsub closes the subscription, sending "CLOSE" to relay as in NIP-01.