You say this is 5 handed, then be raising AJ!!! If you don't you won't hang around for too long!
I normally would have been raising it up with this but for some reason I was contemplating a fold pre flop because it just never felt right and the way the flop worked out it made it harder to get away from.
Having observed the same guys play other night I reckon if I had raised he would have flat called.
It seems that the only hands i have actually seen him play are AA