[StepBangin]

You have the J high flush. Only thing that beats you is something like

Ah Ah xh xh
Kh Kh xh xh
Qh Qh xh xh

I doubt he plays his hand like this though

Edit: I didnt see the straight flush out there.

He could have 3h 4h 5h 6h for the nuts. I would fold