I guess my question, is do I need to let this go, this checking if the phone?
Since checking his phone has never stopped him from cheating on you and communicating with the OW, and you already know everything you need to know to make a decision about this marriage, then yes, I think you should stop checking his phone. You have no intention of leaving him... that much is clear. So stop poking the bear.
I noticed that you edited your original post to delete all the information about your WH's falling out with his sister over a torrent of vicious messages he sent her pertaining to his infidelity, and that his mother told you that she thinks his behavior is abusive. I suspect that you removed this information from your post because it validates what everyone has saying since you signed up to SI.
You can dismiss our opinions because we're strangers on the Internet... but when the people who know and love him best think he's abusive and are cutting him out of their lives, your insistence that he isn't abusive and is just a sweet, loving guy who is having trouble wrestling his demons becomes much harder to justify.
He isn’t an alcoholic, and I don’t leave him with the kids, I go out when they are out school, go for a run. The children adore him.
If you your husband isn't an alcoholic, then why mention his drinking in literally every single post? Were you bringing up his drinking because you want to believe that alcohol is an external force that you can blame for your husband's behavior?
Are you now insisting he isn't an alcoholic because commentators are saying-- rightly so-- that his drinking makes him a danger to you and the kids? And if he's not a danger to the kids, then why can't you leave them alone with him?
I don't doubt that your kids love him; he is their father, after all. But when children feel safe with a parent, they tend to argue with and push back on the parent from time to time in order to get their way because they don't fear their parent's wrath.
If your kids aren't doing that, then I suspect that what you see as "adoration" is the children placating their father and walking on eggshells around him in order to shield themselves from his rages. They've learned that no one is going to protect them from him... not unless, as torso1500 said, the state gets involved again.
[This message edited by BluerThanBlue at 4:08 PM, Tuesday, December 16th]
BW, 40s
Divorced WH in 2015; now happily remarried
I edit my comments a lot for spelling, grammar, typos, etc.