Before I give a reply I want to ask that you please review past threads in the forum before you post new ones. A couple of those you created were duplicates of past ones and/or were answered in other ones of the same topic. This one too would of been best here.
From what I've seen, Brittany has only shown any kind of romantic feelings towards Alvin. Nevertheless, she still cares for Simon and Theodore to a degree but definitely not close to a dating relationship.