I've always disliked Carol Teitel's voice, no matter who she's playing.  Most annoying are her "old lady" voice and "elocution teacher" affectation, and bogus accents.  She is totally unnatural and over-the-top in most of these episodes, and this one points it out strongly.  The zipper can be on the back or side, but almost never in the front, unless it's for decoration.  This jerk of a husband isn't worthy of any woman, the ill-tempered cretin.  Doreen is a reprehensible "person" and deserves what she gets.