Devastated after finding hope in the DB process

[LiM]

I'm still here and dedicated to sticking with this process. I started another thread in the Newcomer forum since it is more active. I've already been given lots of things to read and intend to read it all.
I want to spend time this weekend reading as much as I can but I'm a little unsure how to do it. My W is home but it is possible for me to sit on the couch and read through the forum without any interference. But one of the things I am guilty of is spending to much time "working" on my computer so I've been trying to stay off the computer when at home. I could go somewhere else to read but then I'm not engaging with my kids like I need to be. I suppose I can find an hour to get away and do some reading though.

My main issue right now is how to deal with the knowledge of my W's affair since starting the DB process. As I mentioned in my other thread my W is a triathlete and the OM is her trainer. My oldest daughter also participates in training with him and I just learned that she will be spending 2 hours over at the OM's house/training center this afternoon for training. I'm really not cool with my kids being involved with this person but I don't feel like I can stop them from going so long as I keep my knowledge of the affair a secret. I'm torn between what do do with the knowledge. Tell my wife I know and kick her out of the house if she chooses to continue or just suck it up and continue with the DB process without exposing her affair.