So confused why does he not like talk about are relationship?

I been seeing a year for 2 year when I talk about are further he shut me down so I decided to talk about are relationship and he does not want to talk about it why

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I have been going out with this guy for 2 years but he does not like talking about are further or are relationship together but he say he love me
So confused why does he not like talk about are relationship?
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