The widely held image of William Donald Schaefer as a job-obsessed, monastic mama’s boy is about to undergo still more revision with the scheduled publication Sunday of a Baltimore Sun magazine tell-all by the former governor’s longtime girlfriend, Jeanne Bell.

In an interview with the Sun’s Laura Vozzella, Bell tells about the red “hot pants” that first caught Schaefer’s eye in 1971, the kisses and love notes (“You beautiful thing you!!”) that sustained their relationship and their prosaic life together gardening at the Pasadena townhouse or startling fellow shoppers at Wal-Mart.

(“She’d talk to Don about her dog and what they were going to do at the beach,” is how a source described the relationship to The Brew, in its own story involving Bell, posted last month.)

“Home movies show Schaefer leading the carols at Christmas, claiming the gizzards at Thanksgiving and, after the feast, snoozing in the Barcalounger,” Vozzella writes, describing the scene at Bell’s Locust Point rowhouse where Schaefer was apparently part of every major holiday.

The Sun piece only inflames the still-unresolved mystery that emerged when Schaefer died in April and documents revealed that Bell (whom he met when he was 49 and she was 22) was first included in – and then cut out of – the lifelong bachelor’s will.

How and why did that happen?

Bell is not quoted discussing former Schaefer aide Lainy Lebow-Sachs, who was bequeathed a $500,000 cash gift and 25 percent of the estate’s residual in the final version of the will.

But the story does include a fairly precise assessment of what Bell (who ultimately got only Schaefer’s plate and stamp collection) would have received if an earlier 2005 version had been left intact: $860,000.