Klaus has just came back from time traveling. He is extremely traumatized. Diego is the only one he'll let near him, or in his room. Diego is the only one that he even speaks to. He told him almost everything about what happened to him in the war... Dave... the things he had to go through. It's only until one day he tells him a dark secret he'd been keeping; while getting a mental check he was awared he had DID. At the time it was known as multiple personality disorder. Not only did he have simple, adult or teenage alters, but also small children, linked with his traumatic childhood. He explained how Dave wasn't only a boyfriend of his, but he would care for his child alters. Diego was shocked but then realized... Dave was gone.. he had to take care of him. He was his little brother. DO NOT SEXUALIZE THIS. 💓BROMANCE FLUFF💓