Europeans ignored cultural divisions when settling colonial boundaries because

Europeans had no interest in or concern for African cultural divisions.

Explanation:

With the possible exception of the Americas, there is no other continent ton which European influence has been so profound. In the city of Berlin in 1885, major European powers carved up a blank map of Africa by the strokes of a pen. They created more than 40 entirely new countries overnight without regard to existing political entities, ethnic boundaries, historical relationships, alliances, and geographic and demographic variables. Africans had to live within the new boundaries in completely alien political systems with contrived citizenry.

answer; sociological imagination;

communication.

explanation:

don't be afraid to ask. if you really want to know why they suddenly don't talk to you, ask. but be polite while asking. tell them how you feel. if you feel upset about them ghosting you, say so. people cannot read your mind, so you need to let them know if this bothers you. if they say it's personal family matters, don't get offended. they need space if it's personal.