I'd never heard this before. Usually when callers call in and go at Howard, they clam up & don't bring up good points.
This woman hit Howard EVERYWHERE.
She brings up the fact that Beth doesn't really love him, and has to get drunk to have sex with him, etc., etc. Howard really has no retort, which is unusual.
The first clip I'm posting for background, so you know why the woman called in. The actual call is in the second clip: