At this point, Chitara will likely kill itself on you. It may take a few more turns if the stun lands; you may want to have another pet with Lightning Shield, Fire Shield or another thorns-type ability as a backup.
I put Tiny Tron in 2nd slot and Thundertail Flapper in the 3rd in case needed. In the first slot I used a lvling lvl 11 pet which survived the encounter. During pet week with no other buffs I got 1140 xp for my lvl pet. Just a slight variation on Aeliel's tactic but you can lvl pets here.