Yeah, wow, I have to say again that I don't regret getting the digital one with the words 'not enough copies made so we're making more to meet demand so the game will be delayed for about two to three days' kind of excuse.
Okay so far I've paired/married Chrom up with Sumia, Lissa with Donnel, Frederick with Panne, Maribelle with Lon'qu, and Sully with Stahl.
Word of possible advice: As soon as you can get a Class Change, Use it on your character as soon as possible and change him/her into a Mercenary for the ability to have a chance to reduce chances of your weapon breaking by a percentage of twice your luck stat. So far there's only about one person who is already a Mercenary, but the only ones who can change to that class so far is Donnel, Cordelia and, of course your character. Pair them up with people who are capable of adding Luck and you'll never have to worry about breaking your best weapons for a long while.