What happened to Bachelor's partner, Paul Alexander?
BAD BLOOD SPELLS SPLIT FOR WABC TEAM(Batchelor and Alexander) The separation was due in part to the unreliability of John Loftus.
--Boot Hill
If you want the official story, here goes:
Alexander got bored, a little tired of Bachelor hogging the spotlight and found a much better offer courtesy of The 'Great White Way.'
Aside from being an historian and a freelance journalist, Paul Alexander is also a very successful playwright. One of the off-Broadway plays he wrote hit a nerve, became successful and he decided to ditch his longtime co-host.
Does that clarify things a little?