Each of the Christian forces felt betrayed by the other. After quitting Ascalon, Conrad returned to Constantinople to further his alliance with Manuel. Louis remained behind in Jerusalem until 1149. Back in Europe, Bernard of Clairvaux was humiliated by the defeat. Bernard considered it his duty to send an apology to the Pope and it is inserted in the second part of his Book of Consideration. Relations between the Eastern Roman Empire and the French were badly damaged by the Crusade. Louis and other French leaders openly accused the Emperor Manuel I of colluding with Turkish attacks on them during the march across Asia Minor. Baldwin III finally seized Ascalon in 1153, which brought Egypt into the sphere of conflict. In 1187, Saladin captures Jerusalem. His forces then spread north to capture all but the capital cities of the Crusader States, precipitating the Third Crusade.