That's a great looking Pineapple Guava Madfarm! I used to have a very nice looking tree that bloomed every year but never fruited, I'm in zone 9b. I planted it 16 years ago and last year it started dying and in a few weeks completely turned brown and died.
I believe they need appx 100 chilling hours in the winter at least 45° to get them to fruit?
About 2 1/2 years ago I bought a few bushes, some were seedlings and a couple of dwarf varieties from Lowe's, mine hasn't bloomed yet I'm hoping next year I will get some flowers and hopefully some fruits?? I have never seen any named varieties for sale here and I've been looking for at least 15 years, Lowes was the only one I ever saw with a dwarf variety (Bambina).
Has yours ever bloomed and fruited? Good Luck!