I have a few things to say about the "Caleb" situation that everybody in the Fandom is like 99% aware of. I'm tired of seeing it.
1. If it gives you the ick, ignore it.
2. Headcannon it differently if you cannot. If you absolutely can't headcannon it, ignore it.
3. You don't have to play this game. You do not have to spend money on it. YOU. DO. NOT. HAVE. TO. SPEND. MONEY. OR. PLAY. THIS. GAME. Nobody is making you play this game. Nobody.
4. For people that do still play the game, and complain about it, get over it. Tropes exist for a reason. The step brother/ step sister trope is a thing. The brother/sister/ incest thing is a regulated trope that has been around forever, not just in current media, but in mythological and ancient media. Get over it. That must mean you don't look at or consume any, for example, Greek mythology, Egyptian mythology, or for more modern media, A Song of Ice and Fire where there is clear incest.
5. Different strokes for different folks. Don't kink shame folks for liking different things. Ignore it and move on.
6. If this gives you the ick, IGNORE IT.