AIBU on this
My ex hasn't been the greatest dad, he has regularly let our son down over his short life (DS is 4)
However I've always tried to promote a positive relationship between them, and as DS has gotten older, he enjoys spending time with his dad. Intitally I always came with them, booked a activity and we made it a family day, but I don't have a lot of help and now my DS is able to communicate more clearly I gave my ex the option to have him 1 night every fortnight (Saturday to Sunday) and the weeks he doesn't have him then he can take him out on a Sunday for the day, during the week wouldn't work due to the distance between us and working patterns.
My son spent Christmas day with me and we planned for him to go to dad's on boxing day 12.00 to today (Friday 6.00pm) yesterday my ex called me and said can he bring him back at 12 today, I said no as I've got tons to do and we had it arranged for weeks, after a mini arguement he called back and said 4.00pm drop off otherwise he wasn't having him. I agreed to keep the piece.
Heres the issue. Dad has his own flat (studio flat) his mum lives 10 mins from him and has a 2 bed house, he often stays there with him due to the fact it's a home and not just 1 room which isn't very kid friendly.
I don't have a relationship with my ex's mother, and to be fair he doesn't either he stays there as it's convenient for him. She's been incredibly rude to me, unless my DS is taken to her she never made a effort with him and frankly I don't really trust her and my ex has also stated the same, therefore I have asked my ex not to trust her with childcare and as he sees our son so little our son is his responsibility. There has been a few issues with his mother, she hasn't apologised to me for something back in July and we haven't spoken since. He agreed to this, and we agreed to him having our son there with the view or him having our son at his place in the next few months.
All seemed fine today, he took our son to soft play, he dropped him off at 4.00 and off he went.
I asked my son if he had lots of fun, he said yes but daddy wasn't there, he left me with nanny - I asked him where he went and said said he went to the gym with his friend, unfortunately for my ex my work colleague is also a personal trainer in his gym, so I text him and asked as I knew my ex would lie if he saw him today, he said yeah he was there this morning for 2 hours
I texted my ex and asked him, he of course lied to me - this is only the 3rd time that my son has stayed over (over the course of 6 weeks) and before then he hadn't seen his nan for a year (she made no effort)
My ex knows how uncomfortable I was with this arrangement but he ensured me he wouldn't leave DS with her as he only sees him so little.
Hes ignored my calls and texts and tbh I'm so drained with him, he does what he wants and just lies - am I over reacting about this?