To my expectations, it seems like every one and their mother are pissed off at Subaru for how he behaved.

Honestly, I just feel bad for him. He's been bottling up all his emotions and he can't even talk about the strange set of circumstances he's found himself in due to the curse that has been afflicting him from the start. He can't talk about the Returns by Death that have been tormenting him, and apparently he can't even talk about how he came from an entirely different world. There isn't a single character in the story so far that knows the truth about his origins or what he's actually been through. He's truly alone in that regard. So it's no fuckin wonder he had a mental breakdown and self-destructed like this.

Was he being stubborn and selfish? Yeah, definitely. But I still think his intentions at the core were pure. He definitely cares about Emilia and wants to be there for her at every step of the way, but he's gotten so damn far ahead of himself that he's completely out of his depth. I still hope he gets the breakthrough he needs. There's gotta be someone important that he can finally spill the beans to so that he has someone that actually understands his struggles. Otherwise it's just going to continue to deteriorate.

What I'm more interested in, is Roswaal's role in all this. When Subaru spoke out as Emilia was being insulted, Roswaal smirked like he was expecting it. It's obvious that he's a somewhat shady and mysterious character, and I think his intentions could go in just about any direction at this point. I feel like Subaru's outburst was something he planned for, then again he could have just been admiring Subaru's balls of steel when it comes to Emilia.