DIVERGING

(of lines or paths) to run apart; to separate; to tend into different directions.

(of interests, opinions, or anything else) to become different; to run apart; to separate; to tend into different directions.

Example: "Both stories start out the same way, but they diverge halfway through."

(of a line or path) to separate, to tend into a different direction (from another line or path).

Example: "The sidewalk runs next to the street for a few miles, then diverges from it and turns north."

(of an interest, opinion, or anything else) to become different, to separate (from another line or path).

Example: "The software is pretty good, except for a few cases where its behavior diverges from user expectations."

(of a sequence, series, or function) not to converge: to have no limit, or no finite limit.