Diverge
/daɪˈvɜːdʒ/
verb
(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.
“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).
“The sidewalk runs next to the street for a few miles, then diverges from it and turns north.”