BG1 romances and BG2

I'm not sure if this was covered already or not (I couldn't find anything), but will the BG1 romances interact with the BG2 romances?

What I mean is, will it be possible to have 2 simultaneous romances in BG2? (BG1 + BG2). Or will the BG1 romances confront you for starting a romance with a BG2 romance?

Think Neera and Aerie at the same time for example.

I know you can't romance Aeria and Jaheria at the same time, curious if the same goes for the new romances.

Thanks!