u/Dry-Construction-777

Super new to gardening, I don't even know how this happened.

So my husband bought me a single rose 2 weeks ago. I trimmed the end, added the flower food to water, and placed it in a vase (a cleaned but pretty gin bottle). Over the last few days I realized the rose isn't dead or even wilting. I picked it up just now, and was flabbergasted to see that it looks like it has new growth coming out of the sides?? I'd love to keep the growth going or maybe plant it one day, I just don't know what to do now. Do I cut off the flower part? Do I leave it alone? Do I give it sunlight?