Fact 1: She fraudulently tricked the guy into believing he was the father when she KNEW there was a possibility that he wasn't.

Fact 2: She perpetuated that fraud for years - at least until the child was old enough to chew gum.

Fact 3: When the victim of her fraud tried to remedy his plight she obstructed his efforts to the extent that he had to resort to devious means to prove himself correct.

Now if you believe that she is a good Mother then your moral standards must be different to mine.