he could have called your raise with anything. low pocket pair or / QQ/TT/JJ/ 99/ QK/ Axs/ AT/ AJ/ AQ/ AK/suited connectors.
You have an open ended straight draw, your pot bet gets raised. If you were gonna call this I would just shove it all in here. This has to be a great flop for you because no Ace or King is out, and you have the OESD.