Those feelings are very common and valid. I worried before we started swinging that we wouldn't be able to unring the bell.
Continue to talk about your feelings and fantasies and by all means, read all you can. You'll probably have lots of questions...and I'm sure someone, at some point in time has had the same question and asked it on the board. If not, fee free to ask it.
Only the two of you can decide if swinging will work for you.
And
Pepper