Not really sure if IABU reasonable here and what to do about it.
For the past week I have been asking my partner (of a year) if he was free today so we could make some plans for valentine's day and he pretty much ignored the question each time until last night when he said he was having his kids so his ex could go out, so I havent bothered with anything. Thankfully he hasnt got me a card or anything either which isnt an issue. However they came this morning with a bag of valentines stuff for my bf and inside the bag was a card from his ex aswell. I am quite hurt but dont really know how to feel about all this so have just left after he kept saying it wasnt a big deal and its not like I got him anything anyways.
To not drip feed, we have recently been going through a rocky patch and trust has dwindled. He has always communicated with his ex about the kids via email, recently this has shifted to texts which have been deleted and phone calls which I have only just found out about. They were over for a year before we got together (she left him for someone else which he appeared to hold alot of resentment about when i met him) and I understand they need to communicate about their children but I cant help thinking is going on here.