He’s changed so suddenly and it hurts?

So the guy I was seeing for 3 months chased me for a whole year begging for a chance with me after a year I decided to give him a chance. He told me he was hoping for a relationship and for that to be with me.

He would buy me flowers, cook for me all the time, text me sweet good morning messages everyday, tell me how amazing I am, how he hopes we never fall out, how I always make him smile. Then he had a depressive episode and pushed me away. We tried again and things were brilliant like how they were before. After w weekend together he said he only sees me as casual and never wanted me back. What the actual hell!!!
He’s changed so suddenly and it hurts?
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