Chris, good to hear from you, thanks for the update. I like to see how others are doing that are the same timeframe since BD. Did you see that RDS posted an update and his ex-wife opened up to him about 1 year after divorce and after he met a new girl that he's really into? Go figure. There is another example of having to be truly detached before the ex will even consider putting herself out there (and also that it really is a 2 or 3 year marathon, not a sprint).
You sound to be doing okay as far as detachment goes, okay but not really there yet. Don't worry dude, I'm not either and my BD was April 2016. I'm convinced though it's only because of the children, especially since they are still young, not even close to being teenagers. That I think keeps you (LBS's) angry because you see the effects of it all the time and think about how much better it could be for the kids if the adults could only get their $hit together...at least that's what I feel I'm doing, because I've had other serious relationships end and never really had trouble moving on.
You didn't mention if your ex is still with the OM. I'm not sure if my ex has a guy on the go but we are spending more time together (with the kids) than we did in the first 2 years...but she still runs hot and cold...I do my best to remain steady, biting my tongue at times, etc. Hard to know what she's thinking, if anything (lol), but not gonna ask for obvious reasons.