Ditto. Just accept her and love her.

After I learned that my BF had DID and alters, it actually made some things easier to deal with. It filled in a few gaps and made sense of some otherwise confusing/conflicting circumstances. Even the switching is no big deal because I know it happens, I know what I'm seeing and there's no need for me to worry. I firmly believe and keep telling people - it's ALL the man I love.

Read up on it, learn what you can - it really helps for us to understand a little about what's going on. Listen to her, believe in her, accept her, love her.
And the people here have been wonderful about answering my questions!
Or if you want to PM me, I can share what little I've learned, too.