villain is 48/16/6.5 over 33 hands.

CO ($3.60)
Button ($5.90)
SB ($0.25)
BB ($3.65)
Hero (UTG) ($12.05)
MP ($7.65)

Preflop: Hero is UTG with J, A
Hero bets $0.40, MP calls $0.40, 4 folds

Flop: ($0.95) 3, J, 4 (2 players)
Hero checks, MP bets $0.60, Hero calls $0.60

Turn: ($2.15) 3 (2 players)
Hero checks, MP bets $1.60, Hero calls $1.60

River: ($5.35) 2 (2 players)
Hero ???

Total pot: $5.35

Preflop how many 6-max players raise AJo from UTG? I do it at a loose table where I expect to get called by worse and where there are some really bad players.

We made TPTK on the flop and I just check it to him since I expect him to make a bet given his aggressive play. I call because I want him to keep bluffing and if I raise the flop I expect to only get called by the top end of his range, or only the hands that we're losing to.

Again I check the turn on a decent card because I want him to continue betting and I'll continue calling. He does bet and I call.

The river brings a 2 and the flush doesn't complete. This is the spot where I'm not sure what I want to do. I think because he is aggressive that he'll have air or a weak hand a lot of the time here, so do I want to just check and have him check it back? On the other hand, if I do check to him he may bet a 5, 88-TT, and continue bluffing on a missed flush. Do I value bet or check again?

Results in white below:

I made a small bet of $2.50 into $5.35 hoping for a call and he insta folded.