can this be a spoiler? I dont know, just to be safe

SPOILER QUESTION
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Whats the event that mark the beginning of jaheira's romance? I think I got the Aarie romance started, but no sign of Jaheira's
I finshed her Harper quest, in which I killed Galvary, then when she left the party to got to Harper Hall alone, I followed her and she showed some great feelings for me, but nothing more after that.
The second time, when a group of Harpers ambushed us, there were 2 options, once is to fight, and the second is to no fight, I went with fight. basically, I tried to show her all the support I can give. BUT STILL NO SIGN
Now, I didnt do the sides quest like Shade Lord and Windspear Hill, ... but I went straight to Underdark first, is that the reason? Does her romance only started from the side quests?
Could anyone enlighten me please? I want to have a harem with jaheira and Aarie as my concubines