Should I just show up to my girlfriend's house or would that be creepy?

OK well I really start to miss my girlfriend. I tried talking to her today but she seemed to not want to talk for some reason. but she means the world to me. and I don't want her mad, what do I do? can I just show up at her house or should I wait till I actually talk to her first?
Should I just show up to my girlfriend's house or would that be creepy?
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