Renegade and Two-timer

Renegade noun - A person who abandons a cause or organization usually without right.

Two-timer and renegade are semantically related In some cases you can use "Two-timer" instead a noun "Renegade".

Two-timer noun - Someone who deceives a lover or spouse by carrying on a sexual relationship with somebody else.

Renegade and two-timer are semantically related in traitor topic. You can use "Renegade" instead a noun phrase "Two-timer", if it concerns topics such as person who is disloyal.