I just got ToB and the book says when you go from SoA to ToB it "sets exp cap to 2.5 million, if you (or your other party members)haven't reached it yet". But if you have more than 2.5 exp, do you loose exp points? I'm debating doing all the quests left in SoA just for exp.

Also a Romnace ?, I have Aerie and Jaheria in my party. I conversed with them earlier in the game but didn't prolong conversations (especially since Jaheria got lovey-dovey in the middle of a battle).Is there anyway to spice things up or is my only conquest going to be a drow brat? ...thanks for your help.....

I don't think you can get more than 2500000XP in SoA... of course, if you didn't have ToB installed when you played it. If you had ToB, all you XP will be the same as you finished SoA. And all romances are continued, as far as I know, but I always romance Viconia, so I am not expert with Aerie and Jaheira.