My kids dad went MIA for 2 months and expects to just walk back into their lives... needing opinions..

Ill try and keep it as short as I can. Have final orders from Court, ex is supposed to have kids every second weekend. Has not seen the kids or spoken to them or asked about them since Feb 4th. Blocked my phone number! Was dating a girl on meth for 6 weeks and she commited suicide via a drug overdose and died mid Feb. I went to mediation (as thats protocol here if he isnt following orders) and that was 5 weeks ago. 2 letters were sent to him of which both he ignored. The mediation person advised me to not encourage the contact as hes not in a good state of mind, continuously breaches orders, has no interest in the kids and theyre at an age now that they know what he is. Realise its a blessing in disguise really.. got a call 2 days ago from mediator to say he had phoned and said he doesnt want anything to do with his kids, this made me cry but whatever. Now, he calls me tonight.. all cheerful and normal. I asked how he is and he said "everything is back to normal now, shes been buried and ive had time to grieve so now i can be a dad again" and i wont lie, i flew for him. I said "i dont know why youre contacting me now, you had blocked my number for months, didnt even call your kids. now that youre all better and over it you wanna walk back into their lives??" and he said to me "well you should stop poppping out kids left and right" which didnt even make sense as to what we were talking about.

So anyway, im 36 weeks pregnant, my husband has just buried his friend two days ago and this has not stopped him from his responsibilities as a parent, i am high risk gestational diabetic on insulin getting induced in 2 weeks. I dont need this shit. He walks in and out of their lives as it suits him. I got legal advice because there is a court order in place and the lawyer said not to worry about keeping the kids from him because hes continuously breached it and im well within my rights to protect my kids from someone who is so inconsistent and unreliable. I guess what im asking is, do you think im doing the right thing? Easter is this weekend and im certain the only reason hes contacting me is just to make my life difficult. Its not because he loves and wants to see his kids otherwise he would not have blocked the only form of communication we have for 8 weeks and not even ask how his children are.