Do I miss my ex or simply not feeling alone?

I am 1 year + post break up and starting to feel a bit lonely recently. The novelty of living on my own definitly wore off. Togheter with it I started to think more often of my ex and what she is doing etc. I wish I could talk with her. Am I really missing her or is that just because I feel lonely currently?
Do I miss my ex or simply not feeling alone?
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