IMHO, Elaine is one of the more enigmatic characters in the Seinfeld menagerie. Her estrangement from Jerry is never fully explained...it just didn't work out. Why? My guess is she and Jerry both had the "it's not you...it's me" bullet in the barrel and fired simultaneously...and they were both right!
Elaine yearns for love and affection, yet runs from it when she finds it. That she is promiscuous is not in doubt...she'll screw you (literally) if it's in her best interests. She is unabashed in her admittance to Jerry that she faked every orgasm, and can't understand his reaction. As a bitch she is first-rate....every woman is a threat to her. Of all her reactions, perhaps the most nauseating was her new-found care for Jerry when she discovers that he earns big money...better add gold-digger to the list! Only Kramer is immune to her allures...but more of the K-Man later.
That Elaine is easy on the eyes is not in dispute....but be warned...she doesn't know what she wants...but she wants every man to give it to her. A beautiful denoument would have been her falling for the one man whose unrequited love for her never faltered...Newman. They deserved each other, n'cest pas?
Peter