Hi loulounx,
I feel for you, I've been through all that. My ex was a total sh*t. He wouldn't let em stay in our rented property, so I went into a refuge with dd (pg with ds) til the council rehomed me. Access took forever to sort out, and exp was never really interested in the kids at all - jsut trying to exert control over me.
It sounds a bit like your x is tryign to do the same. My advice would be to get yourself sorted, so you aren't relying on him financially. If you are living alone, you are entitled to income support, and can pay your own bills. Get maintanence sorted, so he is makign regular payments.
Don't text him if you don't want to. If you are happy wiht existing access arrangements, then make sure they are regular and leave it at that. Agree to review the situation in 3/6 mnths time. Eventually, you are going to have to let him have them overnight if there is no compelling reason why he shouldn't, but you can ask to build up to that.
If he isn't happy with the amount of access he is getting, then it is up to him to see a solicitor. It is very unlikely to go to court. Normally agreements are drawn up betwen solicitors. If that doesn't work, then you cna be referred for mediation. Court is a final step where all other attempts to reach agreement have failed.
My x saw the children 3 times a fortnight, supervised at first, then at his mothers, then alone. Eventually he had them overnight and had them every other weekend. I didn't like it much, but at least it was built up gradually. It was all sorted through solicitors, so I didn't have to arrange it with him directly. We didn't get on at all, so that was for the best.
Eventually I moved away, and since then he hasn't bothered. He jsut resented me havign the children, and having the say over where they went. He would make demands to get at me. It had been an abusive relationship anyway. Once I mvoed away and he lost all control, he didn't bother any more. Sad, really.
sorry about the very long post, I hope some of it might be helpful to you. x x