My reco is not to invite your spouse unless you are very sure they are committed to R. My reco is to maintain your ability to write freely, and that means not having your spouse know what you write. Perhaps I'm recommending treating SI as a friend of yours but not your partner's.
R requires actions that change the WS and BS. While reading is an action, it does not necessarily change anyone's behavior. The fact that SI helped you doesn't mean that it will help everybody.
But hope springs eternal. Like many others BSes, I asked my W to join SI shortly after I found it. Happily, she refused. She wanted me to have a safe place, she said. (Yeah, that's shorthand for, 'I don't want to reveal myself to strangers at this point.') I realized I was writing a lot of stuff that I didn't want my W to read, because I was a work-in-progress. I wrote about ugly thoughts that were set in concrete on the page but were still fluid in my mind. SI helped me resolve the issues, and I told my W about the sausage of resolution, but I didn't tell her about how the sausage was made. It's rarely beneficial to see WIP.
Eventually, about 2 years out, W wanted some support that I had no interest in giving. I directed her to join SI and ask for support from other waywards. We set up a couple of ground rules: 1) she was to stick to the WS forum; 2) we were to avoid reading what we wrote; 3) if we did find ourselves reading the other's post, we were to back out immediately after realizing it; 4) we were not to post on each other's threads; 5) we were not going to fight on SI (which some couples do).
Also, we were both committed to R, and R was going pretty well. We were still seeing our MC, so we were both pretty sure we could resolve any issues that arose from us inadvertently reading something that was best kept private.
W didn't post a lot. She said responses to her first post were 'a little harsh'
. She persisted, though, and she received and gave support for a couple of years. As time went on, we shared a few of posts and threads with each other. Eventually we cancelled all but the 5th rule.
Both of us being SIers worked for us - but I believe that's because I had 2 years of SI on my own.
fBH (me) - on d-day: 66, Married 43, together 45, same sex apDDay - 12/22/2010Recover'd and R'edYou don't have to like your boundaries. You just have to set and enforce them.