I have namechanged for this, long time poster. Just need to get some views on this behaviour.
My partner, who is lovely in so many respects, has a couple of quirks that I find difficult to deal with.
Firstly, he is very particular in the way he does things which, whilst I don't wholly understand the need for such perfection, it is something I have accepted. However, lately, some of his quirks have become quite irritating. We have a dualit toaster that has a switch on it that allows you to turn off one of the slots if you only want one slice of toast. It was mine before we moved in together and as me and my child usually have two slices of toast, it's usually on the two slice setting. Partner has taken to only having one slice of toast. Fine. But doesn't remember to switch it back to the two slice setting which has resulted in undercooked and then burnt toast if I don't notice he has switched it over. I have asked him to remember to switch it back to two slices but he frequently doesn't. I realise this is a tiny issue in the grand scheme of things but I am finding it increasingly irritating that he is causing both me and my child inconvenience for what I perceive as his fussiness. Cooking on the two slice setting has no effect on cooking one slice of toast although my partner will argue that one slice ends up more cooked on one side than the other which is weird as he regularly burns his toast but 'likes it that way'.
The other issue is doing DIY or jobs round the house. Again, he is particularly fussy about any jobs he does which is slightly frustrating as it takes him a long time to complete anything. I don't mention it to him as I am grateful that I have finally found someone willing to do stuff. However, my contribution to the DIY is constantly critiqued by partner which I find annoying as I have lots of experience in DIY having renovated four houses before I met him. I may not do things the way he would but the end result is the same which he doesn't seem able to accept. He cannot stop himself offering up unwanted advice and gets quite grumpy if I don't do things his way. I have even been told that I don't put the correct microns of paint on each coat I do which is making me take longer than necessary to paint things.
He also has this thing that if he spends 6 hours or whatever on DIY, I have to do the same. Doing something else around the house isn't acceptable and he has admitted that he resents it. He had issues with his ex wife not contributing much to the upkeep of their house.
Any ideas why he is like this? How do I manage this successfully?