Not liking my partner

So me and my husband have been together 4 years and married for 1. We have 3 amazing children after my second child was born something just changed in me and I was constantly angry at my husband everything he did or said I would just be angry. We then got pregnant with our 3rd and we also got married while I was pregnant but I’ve had the baby and I still just don’t feel the same towards him. I really need some advice on what I should do. Do I stick it out because of the children and see if things get better or do I leave and know that they will grow up in a happier healthier environment where I am happy and not constantly angry towards their dad