Bruce is uncomfortable; it's hard for him to say if he's upset, but uncomfortable's a good word. He's not going to complain about it or expect or even want anything different for himself though because sometimes discomfort is necessary, and sometimes you have to push through it in order to get past it. He'll spend this conversation in Tony's arms; that will help. He backs Tony up just enough so he can turn around and lean his back against the counter, and then he pulls Tony back in.

"The beginning. Either way you'll phrase it in a shocking and/or rambling manner, so might as well go chronologically." He smiles lightly, though it doesn't reach his eyes.

Has Bruce been alone? Yes. How much of that was self-inflicted? Most of it. He pushed people away and kept himself closed off, and now opening up is the rarity, the exception, not the norm.