this sort of age gap relationships initially carry lot of intense feelings of excitement about each other and the relationship would work just fine but later on as you age up, the unsecure feelings would start to raise their ugly heads for women. For most part, after 45-47, its all down the hill for women. The psychological and physical 'wear n tear' is more obvious, forcefull and rapid in women while most men still like to feel like 'boys' even in their late 50s.
Personally I'd dread the idea of waking up to a "Barri B" in my bed when I am only 45 yrs old.