Its extremely difficult to put the guy on 10 2 or 10 5. But you could def put him on either set. Flop bet totally fine, you have to try find out where you are. Maybe on the turn you can then fold or only call.
Not saying I would actually manage to do either, as its always hard to bin AA without any obvious hands beating you. However I would be thinking after that turn bet that I have now got a decent chance of being beaten. Really tough spot, something I try to tell myself is that poker is often won on the hands you can manage to fold, and live to fight another day!
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