If there is a better option than going out the back, it would be something to consider. Can someone be there in your place? If not, going out the back isn't a big deal. It won't make or break your sitch.
Also, I read that you aren't afraid to tell your H that you will be seeing an attorney. He is on the other team. Don't give him your playbook. He should only know at the proper time.
What is causing you anxiety today? The fear that you might push your H into a deeper relationship with O/W? The fear of dealing with his anger? The fear of something else?
I realize that DB'ing is hard, but it isn't complicated. I'm curious, do you beat yourself up over things you could have done differently and struggle to move forward? Do you over-analyze things?
Me:45 ExW:48 M:04/97 3 Bombs & 2 ReCons 1st BD 11/10 D Finalized 4/20 D-16 S-14 Going in one more round when you don't think you can. That's what makes all the difference in life.~Rocky Balboa