I think all Affies are different, but I can tell you that Terra is just the sweetest, mildest and loving dog. She is very tolerant of our new New Foundland puppy who likes to bite her hair and jump all over her, and she is also quite affectionate.
Affies are not "stupid", they are less biddable than most dogs. In other words, my border collie lives and breathes to please, Terra on the other hand, well, not so concerned unless there is a chewie involved!
As a matter of fact, Terra has outsmarted my border collie. If Sage (BC) has a chewie, and Terra has already inhaled hers, she strategically pretends that she wants to go out by going ALMOST to the door they go out of. Well, I'l get up to let her out, Sage drops her chewie and comes charging ahead of me and Terra to the door, Terra does a fast u-turn and grabs Sage's chewie! Dumb? I think not.