[ Has it been any other person telling him this, Five would have argued that he wasn't jealous. Since he is currently talking to himself, that's a moot point. He's not happy about it but he can't deny it either. ]

The more we interact with our siblings, the different our experiences will get. We don't know how long it will last. [ Five starts pacing around, rubbing at his neck with a hand. ] The other Klaus went back to their timelines, that's what my most positive theory. The other is that they glitched out of existence.

[ Sure his other self can see why Five is concerned. Who can tell which one of them really belongs to this world? It can't surely be both, which means that somewhere, sometimes, one of them is missing from that specific time-line and his family might be doomed. ]

If our siblings get used to having both of us around, what will they do once one of us eventually disappears? Vanya, Rey...losing us a second time, the won't handle it well. But we can't do nothing about it because we don't even knwo what caused it. It's frustrating.

[ And it's scary too, something he won't admit out loud even to himself. He doesn't need to. ]