[Bluegrassplayer]

I personally think you should have made a stand or folded on the flop, and definitely on the turn if not.

I imagine that your 7s are good, but it's hard to decide if this is a hand you want to be playing for all your chips. If he has two overs with a flushdraw he is ahead of you % wise at the moment, and you'll be facing some very difficult decisions on the next two streets.