I wonder if Ruellia drummondiana?

Drummond's Wild Petunia (Ruellia drummondiana)

However, there's one obvious difference that quickly separates this Ruellia species from most others, and that is that its flowers arise in few-flowered groupings in leaf axils -- in the angle formed where petioles attach to the stem. Flowers of most other species form at the top of the plant and often there are numerous flowers. This species' leaves also are a little broader than normal, being almost rounded at their bases.

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Hmm, sounds iike it, thanks!! <3