Ex calls me by his old nickname for me?

I dated someone for a few months and he's now good friends with another guy friend of mine... Whenever I come up, he uses the nickname he called me when we were still dating. I'm pretty sure he's dating someone new and I think it's kind of strange. Does it mean anything?
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+1 y
It was a "pet name," basically the shortened equivalent of my full name in Spanish.
Ex calls me by his old nickname for me?
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