You're going to a workshop for personal growth. That's a positive. Not a ploy.
As you know, if you change you might save your marriage. You might bring her back towards you. If you don't change however, and you trick her back to the same old marriage situation you had. THAT is a ploy.
I'd just be honest about it. If she wants to know, tell her. I see no harm in this workshop. H*ck if I wasn't halfway around the world, I'd go to.
Together for 8,5 years. S2 Interest in OM. She left 29.09.12 b/c we couldn't work things out. No signs of OM, not digging. Living in seperate homes, sharing custody.