Sorry you find yourself here but you will find great support here.
What were some of your W complaints in the marriage? Were any of the complaints valid I your opinio ? Since you've read DR &DB what are the 180 changes you've decided to make to be a better man for yourself, that may in turn help your marriage as well? Did you break your hand from punching something in anger? Was your W there when that happened? Is anger an issue for you? Or was this a one time thing?
You've seen the OMs car at 2-3am outisde of his home....I assume that means you purposely drove by at that hour? You're giving him too much power if he has you up late at night driving past his home...thats not ok to do. I know its easier said than done, but let your W go, your pressuring her pushing her more towards her twisted desires. Give her and the OM over to God and start focusing on you and your kids.
What are some changes that you can make for your own good that would make you the husband and father only a fool would leave?
me: 30 H:30 tgthr:7 m:4 no kids 5 counseling sessions initiated by H as a LR: Oct 2012 long distance marriage b/c of work since Nov 2012 official BD: July 2013 nothing filed 1/1/14 I dropped the rope