Well, not that I ever know what I'm doing when it's a free verse or anything, but I think the point in calling it a free verse is that you get to make it your own. There's no rules, and honestly, I don't think you can really do a bad/wrong job, especially if you're expressing thoughts or feelings - emotions, opinions and your own decisions: nobody can mess with those.
Anyway, my thoughts on this is simple, as it is a really good poem. I liked that you took something so common (and, for lack of another word, simple...) and turned it into a thought provoking thing. I grew up thinking that the only way to respond to a question like that is just to say 'good'. Not because I was always good, but because it was polite, or that people wouldn't worry. My boyfriend showed me otherwise, and for that reason and that reason only, am I able to (now) understand the complexity of such a common question...We're all too fast to answer it, and don't see that it's really much deeper than one might think. So, great idea pointing that out, and even better job writing it out. :)