Guys, he says he's over his ex but he still needs closure?

I've been seeing this guy for a few weeks now. We have great chemistry and share a lot of interests. We both find each other attractive but he told me that he's still trying to sort himself out emotionally. Him and his ex broke up a year ago and he said he's over her but that he's still trying to find closure - he's still trying to figure out what he did wrong that caused the relationship to end. He says he's not sure what he wants at the moment.

Since it's been a year can he still be hung up on his ex even though he says he's over her? Am I the rebound?
Guys, he says he's over his ex but he still needs closure?
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