Her granduncle Manuel I Komnenos died in 1180. Therefore, Bohemond believed that the alliance with Byzantium wouldn't be beneficial anymore and divorced Theodora.
Theodora then remarried to Walter of Béthune, son of the lord of Bethsan.
References
^Runciman, Steven (1989). A history of the Crusades. Cambridge University Press. p. 419. ISBN978-0-521-06163-6.
^Hamilton, Bernard (2000). The leper king and his heirs: Baldwin IV and the Crusader Kingdom of Jerusalem. Cambridge: Cambridge Univ. Press. p. 114. ISBN978-0-521-64187-6.