Fragstime912

Hello all,
It's my first time when I post a hand here, I will try to be as clear as possible. Live cash, 1/2 RON..this is like 0,25$-0,5$. I'm playing aprox 800 eff. I open for 12 from utg+2 with 8d 8h and 3 others call me, especially the BB, a nit who sais "This is maybe my worst call from this night". Flop comes Qc 5c 8s. BB checks, I check because there are 2 fishes in left who probably would bet top pair, FD's, and so I would have a very nice spot to raise. Unfortunately, all check. Turn comes 6d. Nit from BB bets 35, I raise 100, then he sais sth like "even so be a set up?"(sorry, I don't know exactly how to translate it, but it's an important tell if you understand). He shoves for 450 more. So my 100+450. While I was thinking he told me"You win if you have a set". I told him I don't believe him. Then he told me he has both sth and drawing. I told him "What? 79 of clubs?" Then he stop speaking. He really could have 55,66...but that speech after the call preflop-"This is maybe my worst call from this night". makes me exclude the possibility of having a set. Except maybe the set of queens! QQ would be a bad call preflop, even if I had a tight image. So I have to put him just on 79. What do you think? Thank you very much and sorry for the grammar mistakes if there are.