Nagging bitch
A nagging bitch is like a dog that won't stop barking even when you throw it a bone and tell it to shut up.
'You said you'd come over, but now you're telling me you're going to sleep instead.'
'I know you're busy, but I'm still going to send you 100 messages about it.'
'You didn't even say you'd come, so now I'm sending you a million texts.'
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