Did I really mean nothing to him?

We dated for three months, he would call me everyday and we would talk for hours and we would hangout almost everyday, whenever we hungout it was basically all day and I almost always spent the night. He was also so sweet to me, would tell me he thought about me all the time, tell me I'm his favourite person. Now he says our relationship was barely even real? And that I was never special to him, that he treats all his friends the same way. I don't understand this! I felt special at the time, no one had treated me so nicely...
Did I really mean nothing to him?
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