the bloom is off the peach

Something, someone, or some situation is no longer as exciting, novel, or interesting as it first was. Likened to a peach that is no longer in its most appealing condition. A variant of the more common "the bloom is off the rose." Everyone had very high hopes for the newly elected senator, but she accomplished little in her first term, and I'm afraid the bloom is off the peach at this point. After four years, it just feels like the bloom is off the peach in this relationship.