Ted....whoa down big fella! Take a breath, step back, regroup, detach, and focus man you CAN do this. Yesterday you were doing great, you accepted you can't control it, you were finding the new improved Ted v2 you were hanging with your kiddo and the world was right, what's that called....DETACHMENT!
OH YES it is a rollercoaster and you alone have the choice to buy a ticket. It's not our 'fight' to win, it is the battle of the WAS not ours. Remember Dbng is about & for us not them, it is our weapon to deal with the sitch use it read and reread again. You are strong when you don't let her 'bait' you. You said a ducks back that's the right attitude live it be it as I say. You have to remember that for every positive 'expect' more negatives.
Do you know there is a OM? If you have no proof for yourself then all you are doing is putting yourself thru torture. As they say around here the OP is not the problem it is just a circumstance of the sitch. You can't as much as it hurts concern yourself with it. With that said if that is something you can't forgive then that is a line you must draw in the sand, but don't make a decision made from emotion, remember what I told you about the 48 hour rule?
We all feel your pain, in my sitch I do all the bills and looking at the cell bill I saw where the W's phone usage went from about 150 minutes a month up to almost 800 after the 'bomb'. So I confronted her with the bills in hand what did she do...denied it I really had no proof there were no numbers it just showed she was checking her email granted it was like every half hour but still I had no real proof.
It is a tough path we are all on only you know when enough is enough. But IMHO you have just gotten started give yourself time to adjust time to learn the principles of Dbng.
You can do this don't let her bait you, don't read into things, don't try and read her mind how can you do that when she doesn't even know what she is thinking. Stay the path, detach. Tink and others have been given your good advice listen and learn. Slow and steady is the path brother one day at a time, live for you and the kids, be the man you want to be.
So enjoy the cartoons, be happy for the kids but almost as important be happy for yourself...