It isn't about thinking ALL girls are bad. It's about understanding the differences between men and women and shedding the misconceptions and idealizations you've had about women since a young age.
Basically, many guys who don't have much experience will think they found a "good girl" because they aren't used to the way girls withhold information and change over night. A girl never TOLD him about all the guys she's fvcked, therefore, in his unknowing mind, she hasn't fvcked a lot of guys.
Once you realize the nature of women, you start to understand how things are. You really shouldn't even hate a girl for being a slvt because you are too smart to let it affect you. You aren't fazed that the sweet girl in front of you was willingly gang banged by an entire frat house the night she lost her virginity.
The guys who say "all women are slvts" really don't get it. The guys who accuse people like us of saying "all women are slvts" also don't get it.
Those who do get it, understand female nature and know that it's best to assume she is like every girl until she proves herself different - which takes time.
I don't remember the exact expression, but it's like this: "a friend is someone who hasn't stabbed you in the back - yet."
The same ideas apply to dating, which is why you should be careful in a LTR.
A girl can be a "good girl" for as long as she needs to be. She can create an illusion to get what she wants. To believe that is how she'll be forever is pure ignorance. Maybe she will be great forever, but to believe she isn't capable of changing into a different person and leaving you stranded without a second thought is the sign of an inexperienced man.
You don't have to spin plates, but it sure helps reduce the odds of catching oneitis.
