not sure where to go from here

[tiredndrained]

Nothing ever changes. In a nutshell, H went out on Sun at 2PM and didn't see him til 7AM. Got in huge argument...why? I don't know why since it is the same every weekend. It upsets me all over again and again every time he does it. He acts like I'm crazy and he is doing nothing wrong. I can't remember a time in 17 years that he would have ever gone out all night and not called. S11 is in therapy and told me yesterday that all his probs are his dad and he been upset bc his dad leaves at night. He also very upset when he wakes and dad is on couch. He doesn't understand why he is doing this and unfortunately I don't either so I'm not much as for support as to explain his behavior. I can't tell them about the OW as much as I want to. H swears it was over with her for a while but I still find it very hard to believe when he leaves and can't provide any suitable alabi. I'm not stupid. Then after the argument he was in a terrible mood and became cruel all day to me. We have since stopped talking. Monday, it was S8 birthday and we spent evening celebrating as family. Some time during the day H got mad over something dumb and starting yelling he hates our house and can't wait to move out and leave all of us. He isn't any nicer to the kids. Unfortunately they don't understand. I told him in private that I spoke with an atty and know I can have him kicked out if I wanted to. He then started threatening me if I do that I will be sorry. He is not a violent person and has never done anything to me. I don't feel scared or worried but it was so out of character for him to even go there. All I want to do at this point is get away. I don't see him trying too hard to find a job. I think he knows once he has a job he has to leave and I will divorce him. He says he doesn't want to be with me and that is what he wants but if that was the case I would think he would try harder to get a job and move. I think he is confused. Fortunately I am no longer confused. I know what I want. I don't want my children in this situation any longer. I need to get them to a healthier environment without the H.