Hmm, I think maybe you didn't do enough of the romance (ie the romance variable was still 1) for it to continue in ToB. You could try using CLUAConsole SetGlobal("JaheiraRomance","Global",1); that triggers the next dialogue, but it might not work since you've already gone to ToB with the romance seemingly not active.
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Goddess of Undress
Co-owner of the Evil Petting Zoo and Sorceress of the HADB
OLD COOTS eye candy and Disrobed Division of the ORT
And her sidekick Pink
"High hopes...an endless river...forever and ever"