Why do monkey branchers not stay with one person but keep jumping through different partners while in a current relationship?

Why do some people not stay with one single partner but keep jumping into one new relationship to another new relationship and keep repeating itself?

Have you been monkey-branched from someone?
Why do monkey branchers not stay with one person but keep jumping through different partners while in a current relationship?
Why do monkey branchers not stay with one person but keep jumping through different partners while in a current relationship?
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