My girlfriend blocks me everytime we argue is this normal?

Hello guys and girls i hope you all doing well ,

so me and this girl we have been together for 2 years , and there is something that i hate about her is whenever we argue she decides to break up and block me while am writing her a message , and then she comes back later... ,

i told her it really hurts me when you do that, we have to communicate and stuff , she said i will never stop doing that...

What do you think?

My girlfriend blocks me everytime we argue is this normal?
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