kind of lost here. is this a fold or should i have bet turn/c/r turn?

I'd guess mdom's flop calling range is 22, 55, 66-JJ, 64, 43. He'll obviously bet turn with all sets, and this bet size looks very much LIKE a set since the board is so dry. If he thinks you're both weak-tight he might attempt a cheap semi-bluff with an OESD, but it's much more likely he'll take the free card. Not sure how often he'll bet TT-JJ here for protection.

In any event, I think you're in rough shape against his range, and I'm OK with a c/f here [especially with a third player in the pot.]

If you do decide to play the hand, I think c/c, c/c is a better line than c/r since he'll never call your c/r with worse [unless he has like 43hh or 64hh] and c/c, c/c allows you to extract more from his river bluffs. I'd need a bunch of additional variables in place to think that he'll be semi-bluffing here enough, though.

yeah i felt more often than not mdom has a set here. i thought this because he flatcalled with the halfstack yet to act behind him. I was kinda on the same line as you here and thougth he'd take a free card vs 2 other opps with a str card.

yeah thx tho, vs his range im def crushed, different situation with just the two of us in the hand i think. If that was the case i would probably be more inclined to fire turn as well.