Yes...I know it gets tall. Most of my fave plumeria are "off-limits " to me, for this reason, unless I want to constantly ("down -graft "is the term, I think). Unfortunate, but I'm still grateful for those smaller ones that I can grow, and for the knowledgeable growers who introduce me to them. Life's not perfect (good thing, too, or what would we have left to strive for?), but it can still be very beautiful and rewarding...
And your trimark is strikingly lovely, I'm glad you posted pics, so I can enjoy it, too!
