from my experience, never! ten years ago, my bf back then and i broke up. nagkabalikan kami not knowing meron na pala syang iba. when i found out, i dumped him. so tuloy pa sila then nag-break sila then balikan kami ulit on-off, then he cheated on me again! so last na yun, ayoko na talaga. ayun, yung girl hindi nya alam na sya ang third party. they're getting married soon. ha! good luck.