Seinfeld's Teen Ex-Girlfriend: 'Memba Her? Seinfeld's Teen Ex-Girlfriend 'Memba Her? 4/15/2010 4:01 AM PT In the mid '90s, Shoshanna Lonstein became famous as the Manhattan teenager who dated Jerry Seinfeld. Guess what she looks like now! Share on Facebook Share on X Jerry Seinfeld Shoshanna Lonstein Hook Ups Dating Memba Them