My boyfriend of two years has called me other girls names multiple times. What should I do?

The names he has called me are Ava, Avery, and Amanda. All of those are not my name. He has also become very distant lately and usually never answers my text or leaves me on read for days.

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He used to have a cute nickname for me, but he’s been calling me babe for a few months now instead of the nickname he gave me. Am I overthinking this situation or is he bored of me?
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He also brings up his ex girlfriend all the time and I’m starting to think that he is not over her.
My boyfriend of two years has called me other girls names multiple times. What should I do?
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