Mystery solved on my unknown plumeria (see below):
My long awaited Barbados Showgirl/Confetti (2 tip purchased from BBB with tag still intact) bloomed. One bloom fell (when hubby was transferring the pot from the back to the front garden)...and here is what the remaining bloom looks like.
To my surprise when I compared the blooms of my Barbados Showgirl/Confetti (left bloom) with the unknown plumeria (right bloom) purchased as 1 tip rooted plant at HD 3 years ago, they look exactly the same , the same scent and the same size:
Here are the blooms of my unknown plumeria (now known as Barbados Showgirl /Confetti
)