Asked a girl for her Insta, she didn't follow back, text or unfollow?

So I had an interesting experience today. I was in the metro and spotted this girl who, honestly, was like a total baddie. Compared to her I wasn’t dressed all that well, but I’d say I still look good enough according to societal standard.

My friend dared me to actually approach her and ask for her Instagram. So I waited until she got off the metro to avoid making it awkward in front of everyone, then walked up to her. I told her straight up that my friend had given me this dare, and also said she looked pretty cute. She thanked me and seemed nice, not the ignorant type. Before leaving, she said, “Have a nice evening.”

I was in a bit of a hurry, so I didn’t really get the chance to ask much about her beyond that. Later, I sent her a follow request, and she accepted. But the thing is, she didn’t follow me back. So now I’m wondering in this situation, is it wise to actually text her even though she didn’t follow back, or is it smarter to just unfollow and leave it at that?