I may be misunderstanding here But because you have boundaries doesn't mean it has to speed up the D process.
Boundaries are meant to protect you not ensure a quick end to the M.
If the affair is a deal breaker for you that is one thing but if it isn't slow down and don't think of it as him or me.
Obviously there can't be three in a marriage. If you want to stand for your M do it.
Once you read DR some of these things will become clearer to you.
Me 47/W 34 T 16 M 13 No kids BD 6/2013 W asked that I move out 6/2013 I moved back and W is upset with this 12/2013 separate beds not much talking Served D Complaint 5/2014 W moved out 9/27/2014