Why is he so nonchalant over our breakup?

i broke up with my boyfriend a few days ago.

his reaction p*sses the hell out of me. it was something like. 'oh. okay.' the thing is, before that, I had asked him on a scale of 1 to 10 - how much did he want to break up?

he answered with 1, not at all.

and now he basically doesn't talk to me at all, and doesn't seem to miss me. I miss him alot. I do still want to be friends with him, and it's annoying that our friendship isn't worth that much to him. why is he like that?
Why is he so nonchalant over our breakup?
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