We love using weddings as date nights, but if this is not an option we don't mind as our kids will be present. There will be lots of partying going on though, as a heads up!
If your invitation says “and Guest,” then yes, if not, we would prefer if it was just you.
Semi-Formal, please. But we want you to feel comfortable, so if those shoes are too high or that top button is too tight, let it all hang loose. We just ask for no jeans.