I Asked My Crush/Friend How Would He Feel If He Never Saw Me Again, and He Replied, "To be Honest, I Don't Know How I Would Feel". What Does it Mean?

I've personally known this guy for 5 months. I initiated conversation first and followed him first. We began texting each other and I ended up asking him out. Even though he agreed, he canceled on me twice. Despite him eventually telling me that he wasn't ready for a relationship and wanted to be friends, we still would text each other, a few times for hours til the early morning. He did admit to liking me and being attracted to me. One of the last things he texted me was, "although I was supposed to go to bed, know I'm thinking about you and I care about you".

A week later in person, I asked him, "How would you feel if you were to never see me again? How would you feel if we never spoke again?" His response was, "To be honest, I don't know how I would feel. I don't know". I just nodded my head and moved on. But what does this mean when a guy says this?

He's Really Not Sure
He Doesn't Really Care
He Probably Does Care
Other (Give Answer)
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I forgot to mention that he's also really considering insisting in the army. He was called by an army recruiter and is really considering joining.
I Asked My Crush/Friend How Would He Feel If He Never Saw Me Again, and He Replied, "To be Honest, I Don't Know How I Would Feel". What Does it Mean?
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