Can't do right from wrong

Recently my partner and I have been arguing lots, we went on holiday with a few other people and he kind of went downhill completely with arguing the holiday was a nightmare. When we came back my partner said he realises he doesnt treat me well and wants to do better, I was very happy to hear this. This was over a week ago. He has been doing the complete opposite I feel as though I can't do right from wrong. We have been together for 3 years and have an 11 moth old baby girl. He gets annoyed over the smallest things for example. I move his products in the bathroom when i'm cleaning, I left a window slightly open in the house, After I have washed his clothes and ironed them I put them in the wash basket folded and he says why can't I put them away. I work part-time and on my days off I look after our baby girl, I feel more like the cleaner/babysitter than a girlfriend/partner. I just feel like everything I do is wrong and worry what his reaction may be. Just feel lost. Please Help!

to me it sounds like the relationship is over for him but not yet for you. at least his interest in having a relationship with you. perhaps having a baby has changed the way he sees you or has given him the idea that you will always be there because you have a child together. my advice for you is to try your best to have fun. sounds odd but it could restore his interest. he probably is used to you being upset so if you suddenly come back from the store smiling and singing, he may remember why he fell in love with you. it will also take the pressure off of him being the only one that makes you happy. you may not know it but he might feel like he has failed you. he has run out of ideas to keep you happy.take your baby to the park, put on music and dance, read things online that make you laugh out loud(auto correct fails do it for me) and eventually he may be coming to you smiling and want to get in on some of your fun. and if he complains about you not puttin his clothes away pretend like it doesnt bother you at all. if he tries to get under your skin and it doesnt work he will only try harder. and the harder he tries is good practice for the effort it takes to make you smile :)