I left my ex in 2004 and he kept custody of our son, as he is Autistic Spectrum, and I moved from Scotland to Wales, which meant we would have to reset up his support network. Our son is now 8, and until last year his dad was awful when talking to me.
Then he changed and became able to talk with me about things that were relevant to our son. He got to the point where he was ringing me up to ask my advice on his new partners (didn't want to get involved tbh).
Our son just came down for a week and was really poorly behaved. He chewed holes in all of his clothes, stank of urine as he had wet the bed at home and the pyjamas had not been washed, didn't have his asthma medication, had a gum infection, wrote on our furniture in biro, and screamed at the lo whenever he made any noise (cooing, babbling and screeching all got called "crying").
After his return to his dad, I arranged to talk to my ex tonight about the situation, and transport arrangements for the summer visit. I mentioned all these things to him, and pointed out that I have an exam in the October break when DS is next down. He immediately got defensive and started shouting about how I didn't take him last October because I was conveniently having a baby that he didn't know about till after DS told him last summer. (I didn't see how it was his business at the time, and wanted to tell DS face to face before his dad had chance to poison the situation).
He ended up calling me again and again tonight, swearing, verbally abusing my DH, and all in earshot of our son. He claimed that DS was kept up all night by lo crying (lo sleeps all night, and DS was having nightmares every night) In his last call he announced he is taking me to court again to try to stop my access rights. In Scotland, I signed a parental rights and responsibilities agreement when DS was born, thinking it would be best for DS if anything happened. It's this he used against me before, and now I don't know what to do.