Hero (SB): 62.04 BB
BB: 13.52 BB (VPIP: 16.22, PFR: 8.82, 3Bet Preflop: 0.00, Hands: 37)
MP+1: 32.1 BB (VPIP: 17.20, PFR: 14.69, 3Bet Preflop: 5.83, Hands: 250)

Pre Flop: (pot: 2.7 BB) Hero has Js Ah
fold, fold, fold, MP+1 raises to 2 BB, fold, fold, fold, Hero calls 1.5 BB, fold

Flop : (6.2 BB, 2 players) 3s 2h 8d
Hero checks, MP+1 bets 2.05 BB, Hero calls 2.05 BB

Turn : (10.3 BB, 2 players) As
Hero checks, MP+1 bets 6.04 BB, Hero calls 6.04 BB

River : (22.38 BB, 2 players) 8s
Hero checks, MP+1 bets 21.88 BB and is all-in, *Hero???*

I am so confused preflop and on the river. My hand is under represented when we get to the river, so I have to call? I feel like this could have been avoided though. Should I have played differently pre?

Please help.