Toxic relationship

Why is it so hard leaving especially if you have a child? 🤦‍♀️ I feel like it should be just as easy if you are not a parent but it isn’t. Ugh I keep making myself stay thinking my significant other will change and it is still the same bs. I want to move on already and be in that stage where I’m happy and not thinking about them but that is what is difficult about this whole thing. It’s leaving and being upset, thinking about them everyday knowing they treat you bad most of the time.