What'd I do wrong here?

Table is really loose passive. SB is pretty passive as well. He only really comes alive when he has the nuts. From my notes, UTG+1 is a LAG. He's raised 66 early and will play just about any hand that has a face on it like K2.

PokerStars 0.10/0.20 Hold'em (8 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with 7[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
UTG calls, UTG+1 calls, <font color="#666666">1 fold</font>, MP2 calls, <font color="#666666">1 fold</font>, Button calls, SB completes, Hero checks.

Flop: (6 SB) 7[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, UTG folds, UTG+1 calls, MP2 folds, Button calls, SB calls.

Raising to protect and drive out weaker draws as well as see where I sit. SB only calls, so I don't think he has J. If he had a set, from previous experience, he would've raised back at me. My guess is a pocket pair of somekind, or maybe overcards. No idea what UTG+1 has.

Turn: (7 BB) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">UTG+1 3-bets</font>, Button folds, SB calls, Hero calls.

Seems like my hand is too strong to fold, so I raise. Should I have just called or folded here? UTG+1 wakes up all of sudden for the 3-bet. This can't be good, but then again, he can be very erratic and the pot is getting large, so I call the 3-bet. Was this a mistake?

River: (16 BB) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">UTG+1 bets</font>, SB calls, Hero cries.

Thinking back to SSHE, for this big of a pot, I have to call , right?

Final Pot: 19 BB