Lover's Sacrifice / Lover's Redemption
Sent Tamoko to the afterlife. / Convinced Tamoko to aid you.
When you return to Baldur's Gate after escaping head to Sorcerous Sundries. Outside you will find Tamoko, the Cleric who attacked you with Sarevok. Be nice and agree to meet her by the Flaming Fist HQ. This can be tricky with the Flaming Fist hunting you.
When speaking to her outside the Flaming FIst HQ agree to her request and kill Cythandria.
Your final encounter with Tamoko is outside the Temple of Bhaal in the Undercity. use the following conversation options 1, 3, 2. Depending on your CHR will depend on how well it goes she will either attack you or walk away. I had CHR 16 and it took a couple of reloads to get it to work.