It's very pretty.

It's adorable! Is the stem starting to turn woody? I think they can...? If you start picking off the biggest leaves periodically, like 3-4 per week or bi-weekly, depending on how fast it replaces them, you could turn it into a quasi-bonsai thing that doesn't need actual trimming to stay small, if that kind of thing sounds like fun.

Purple,

I have two Impatiens, the one pictured (with pink flowers) and another with red flowers (pics are coming as soon as the buds open). The one with red flowers has a thicker stem and is starting to get the woody appearance you mentioned.

They both put out new stems like clockwork, often pushing older leaves out of place.

I did give them a thorough trim this winter (not the best timing...oops) down to about one stem on each. Since the cuttings take so easily (I gave the extras to my grandmother), I should have no shortage of impatiens!

That's very cool!