My partner of 15 years can be very childish and tends to hold a grudge, even after apologising.
One the flashpoints is around whenever I might spill something, burn a pan etc. I am a little careless and impatient at times and recently a put some whites in the coloured wash without thinking. It wasn’t a disaster except in pillowslip looked a bit blue! He thinks I don’t care when things like this happen and as soon as he accuses me of this kind of thing, I just come across as I don’t care because he is going on so much. I joked it looked better and I said I didn’t do it to piss him off. He goes in and on and I then I take ages to apologise. He brings up all my other dismeaners from years ago and it is tiring! We were putting out the washing and he was berating me so I left the room. He proceeded to throw some of my wet clothes in the floor and then he said to piss off. He has said F off when we had an argument over driving and I drew the line at that.
Now he has sworn again! He has a high pressure job and he gets very stressed but we are about to move into a new home soon from the flat we have lived together in. So I am concerned this behaviour may continue. I have had family staying for a couple of days so haven’t broached it but do I say something? Or leave it. He was lovely during their visit and I’ve since chipped a cupboard as the screws gave way weirdly!
I would say that if he ever does something like this again or swears at me, he can live on his own life in the lovely house we plan to move into.