Eject after her infidelity

Eject after her infidelity.
After you have been dating a woman and the two of you have been exclusive,
at the first sign of her infidelity,
Infidelity is an irreparable breach of trust and cannot be repaired.
I tried to fix a relationship after such an incident,
and she continued to remain in touch with her secondary lover.
Despite advice to dump her and her continuing affection toward me,
I held on for a few more months, which were miserable,
before finally pushing EJECT and unilaterally dumping her with no warning or discussion.
 The lesson is: pay attention to what women DO, not to what they SAY.