Friendly reminder that Re:Zero is an anime that comes from a gigantic web novel, I just have the sensation that people are obsessed in being infodumped at the start of the story, if we don't know anything from his family yet is because the story doesn't want yet to tell us about it, same about why Subaru is so attached to Emilia from the start (maybe there is a motive explained later on).

First of all, he never tries to find a way to explain his power to other people.

You haven't watched the last episode, didn't you?

And if that doesn’t work why doesn’t he say he can see the future.

Do you think people would believe him? Everyone just takes him like if he was an idiot.

He doesn’t even understand that every single situation can be solved with suicide. Why is Subaru ever upset about any character deaths when no consequences are ever permanent because he can time travel

Take a knife, try to stab yourself, go, just do it, dying probably doesn't hurt at all!

It's obvious that he doesn't want to suicide, that is terrifying, also, maybe because we're just watchers we can just think like "duh, just suicide and repeat", does he really know how many lifes has? Maybe if he dies, let's say, 3 more times, it's game over, does he know that? Hell no he doesn't.

Also, they keep saying that the smell Subaru has increases every time he dies, that might have inmense consequences later on the story, dying might be causing a lot of issues for him later on.

Why do Rem and Ram have such a strong connection?

What the hell was episode 11 to you? They got the backstory explained there.

Why do Subaru and the maids care about each other so much?

Remember that at the start, everyone actually doubted of Subaru, and Rem and Ram only kept interacting with him for orders of Emilia/Rosswald, later on Subaru finally figures out what to do and helps them defeat the mabeasts to save the whole town and their lifes, so it's normal that they start appreciating him, even more clear from Subaru's perspective that due to the time loops he knows a lot more about both twins and how they really are.