I think the relationship is interesting. It's different to a normal "love interest" and somewhat of an exploration into how relationships are not always black and white.

Also, she's so lovely and such a good person - the anchor Strange needed to emotionality and humanity. I hope to see her fleshed out more into her own character.

@BETJ, absolutely agree. Notice Strange's arrogance at the beginning compared to the end. At first, he was a loner, and was selfish. In infinity war, Strange (kind of) sacrificed himself to save the world, an incredibly selfless act. Although Strange's change from a surgeon to a time/dimension traveler helped the most, Foster definitely helped with that change.

Palmer, forgive me

She helps and plays a nice role in doctor strange movie

Christine’s the sweetest Strange could get, and I think is absolutely perfect as a “rom-partner” for Strange..since we all know he’s suffered from a lot of ego issues ..having someone who would rather understand it and not fight it is absolutely beautiful, in Doctor Strange we see she’s fed up of it but still so in love with Strange and forgives him like it was nothing and I think it was amazing

Strange has obviously changed since he got his abilities which may all be a fruit for all the strangeness Christine deals with (haha u see what I did there)