[elindauer]

I assume he meant tens. I don't think you are likely to be up against a three here, even though that's what the SB is suggesting he has. The real fear is that you are up against a J with a higher kicker, which could be in either of your opponent's hands. So, tens are good if you are up against a better J, jacks are good if you are up against a three, but of course, you won't know what you're up against untill you pay your money on the river, and that's assuming you improve...

In light of this, I think it's a fine fold.

As for preflop, I think it's close. I like that you are facing loose and passive players, so you may be able to get free cards when you need them. It's just tough for me to play a hand for multiple bets PF when you can easily connect and still fold without much action, as happened here.