hi there i really simplfiy with u was he ever violent to you? and was he violent in front of your children i do hope not as this can have a grate affect on them. if i was u i would tell him that you would like him to stay away for the time being as you need to get legal advice, i think u should take tis to court becouse it is in te best intrest of the children and he should under stand this if he loves them. i think i am going thougth a simeler thing orthogth i was not married to my ex but i was with him for 8 years , there was alot of violance that i could not tell this to the police as he would kill me he is a very dangeras man . he got me on drugs when i young and then when he came out of prison for dealing heroin i 15 years old and i had a bed site that socail sev got me so he moved in and then gave me my first injection of heroin which carred on tell i lernd to do it my self so he had control of me,when i was 21 had a loevly baby which made me wont to change , but things got wores the mentill and fisacal abuse aswell as the drug abuse he bet me meny times infront of my baby, so i left i met someone ells i got saved and became a christian and have a stabble home with 4 children of which we do not whont to be upset as this man this man is dangeras since the court proceedings he has been in 3 times one of the things was a stabbing. the court will make the best dessestion they think is right and i think becasue of the way your ex has been behaving in front of the childern he may well lose his parentel rights, but u do need to get to a soliceter to make a applacation to the court and serve a order on him to stay away for now tell court has sorted this out it is not fere on your childern and he seems very unpodicktable. i am sorry i whent on about my case but some times it helps to talk so fealy free to talk to me if you like .u do need his parental resonsablity take away, i think uare in a good pro protect your family. i whish u all best may god blees you.