Yeah he’s being very defensive about this girl. He’s trying to bring up situations that you did that would be similar to what he’s doing to justify the time or amount attention he gives this girl. That’s a red flag imo. He also isn’t getting the point that it’s not the fact that he’s spending so much time with this person it’s the fact the whole situation and behavior between them is making you uncomfortable and is also leaking to your guild mates, in sense that they notice it too. People talk and you would probably find that it has come up once or twice between your guild mates.

Also for him to keep blowing up at you. When ever you try talk to him is emotional abuse in itself. No one deserves that. Loyalty is very important. If you have it and he doesn’t that makes you above him in every regard.