It's our sons 2nd birthday in a few days, my partner and I sat down and talked about what we're going to be doing on the day last week. He wanted to take him to soft play so we're doing that first, then I wanted to make some food and have a little tea party at home afterwards. We agreed. Now, he's told me that he'd asked his mum to do a tea party at her house, so she's bought all of the stuff and is making everything. Apparently he "forgot" about our conversation.
I'm really upset about this. I know it doesn't seem much, its just a birthday and our boys too young to be bothered, but I really wanted to do this little tea party. He said sorry and then said we still have to go to his mums because she's bought everything now. I wanted to get balloons, hey Dundee party plates, my dad's friend has made a cake, but his mum wants to use different things and is making her own cake.
I'm not annoyed with his mum, it's my partner that told her we both wanted her to do this.
We've been together 4 years now and he's always been kind of forgetful, in the usual men don't listen kind of way. The past year, it's just really started getting to me. It seems to mainly be about things that don't involve him (things about me or my daughter from a previous relationship, or my family), whereas he remembers things about himself, his son from a previous and his family.
I've told him he needs to write things down, go see a doctor and I even got to the point where I told him all of our serious conversations need to be through text so I've got proof in case he forgets. He's forgot to pick up our toddler from my mums house while I've been at work a few times, he forgets almost everytime we talk about something if he doesn't get what he wants.
It's really getting me now, but I don't know if I'm just overreacting (it's near to that time of the month, forgive me 
) This is my first serious long term relationship, so I don't know if this is all just normal.