if you accdiently called someone for 1 second, would they know?

1 second is on the boundary of reaching him. If his phone rang, then your number is there. In fact, that's a cheap way of asking someone to call you, just call quickly and hang up. But if the call never made it into the network, then no, he won't see it.

Nothing to be embarrassed about. If you already text, then he's already a friend. Even if you did call, that doesn't mean that you're in love with him or anything.

no, it takes about 3 sec for you phone to dial out, which means your phone is connecting and he wont see it until your phone starts to ring. so unless you heard a dial tone your safe