Well, I'm starting to see a pattern now - "PBF/RM" is showing a pretty strong mark on its offspring. That would be: usually dark-purple, sweet fragrance and largish flowers (for the plant size).
This one is from a sibling of 'Cricket Song' and 'Easy Smile' that has rebloomed but not consistently. So it would be:
cengialtii x (variegata x suaveolens var. melitta) X
[(Kupari x Rosemary's Dream) x (Kupari x suaveolens var. rubromarginata)]
It could be thought of as a shortish dark-flowered pallida.