Putting aside 90's issues and stereotypes, i would not be surprised if she grew up with:
- very little contact with men, outside of close family
- perhaps a bad experience with a groper.. or just guys staring at her.
- went only to all girls schools
- perhaps may have been groomed by a predatory lesbian and ended up absorbing that behavior as the "normal" way to do things.
or i could be wrong in all of it and she's just a jealous bitch, like people can be.