Complete story — includes the ending
After Ned does a telephone prank on his college radio station, saying that a guy is leaving his girlfriend for another girl, a woman comes to the station and angrily states that it happened to her eight years ago and it's not funny. Eventually, Melinda discovers that this woman set up her husband to try to find out if he was cheating, since she had trust issues, it led to their divorce, and he married the woman he named on air. They weren't together at that time. It turns out her fiancé was jealous too and drowned driving to the station to stop them.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Ghost Whisperer season 5. HTML formatting and reference markers removed. · Content license