Long story but I'll keep it as short as possible. My ex (DS dad) and I separated a little while ago, I am heavily pregnant with our second child.
Ex sees a lot of his family but hasn't got a particularly close relationship with any of them. I'd never met any of his family before falling pregnant with DS and when DS was born it fell to me to make the effort for his family to even spend time with him as Ex was too busy. His parents were happy to visit once a month, no other family members would get in touch to arrange anything and, as I don't really know them, I would have had no way of getting in contact with them myself. Ex would never be here when his parents visited, leaving it to me to play host. I barely know any of his family so it was very awkward and uncomfortable. Due to my work commitments changing, I wasn't able to be available as freely as I had been and this caused tension with Ex's family. I explained the situation to his parents and asked Ex to speak to them to make sure that they knew that I wasn't being awkward, I just didn't have as much free time anymore. I later found out that he didn't do this and this led to his parents no longer visiting DS or spending any time with him.
We used to argue about this quite often and Ex would become very defensive of his family and get quite verbally abusive towards me. One of these arguments was the cause of our separation.
Ex has been living with his parents since we separated and I have found out that he has told his family that I refused to allow them to have contact with DS, that I was constantly offensive about them and various other lies. He has been telling them this for a long time, obviously to make himself look good by giving me an evil persona and, as they didn't really know me, they have readily believed his stories.
I am nearing my due date. I would like my kids to have a relationship with both sides of their family. I am willing to draw a line under past events and start again, as long as Ex tells his family the truth. That I'm actually nice, that I'm a good mum and that he has caused the divide between us all by lying to me about how much time his family wanted to spend with DS and by lying to his family to say that I wouldn't allow them to visit. Ex refuses to do this and says that he's entitled to tell people his version of events (twat).
So the question is: Would I be unreasonable if I told his parents? I'm so annoyed that DS is missing out on having a relationship with his grandparents over something so stupid. I really feel like sending them a letter explaining things truthfully, even attaching pissing screenshots to prove that I'm not the liar and offering them the opportunity to develop a relationship with DS and this baby when they are born. Should I? Or am I just being angry and hormonal?