I have been with my boyfriend, now fiancé, for 5 years. As the years have gone by, I am starting to realize that I end up doing everything for him, and I feel like he has turned me into his mother.
He doesn’t have a job and I am working full time and when I get home from work hardly anything has been done and he is playing games. Then he expects me to cook him dinner because he hasn’t eaten all day while I was gone. He also expects me to make all the important decisions, then gets so mad at me to the point I am frightened of him, when I don’t tell him when I do something.
What should I do? I feel so exhausted and broken all the time. I’ve asked him to change or at least try harder to do a few things to help out around the house, but he hasn’t. And every time I think of leaving or try to pull away he gets really sweet and caring and then goes right back to the way he was.
LemonVibe 
It’s never going to change. Move on now.
I’m going to assume that the house is in your name (as you’re the one that works). This man is a parasite and you need to get rid of him before he sucks your life away. I suggest you have any capable male friends of yours to help you kick him out of the house. All his stuff needs to be removed and you need to break off your engagement. There’s no way to know for certain how he’ll react, but anger and violence is a likely possibility. (Hence have able make frito new assist you in this.) If he tries to come back or does anything of the sort, you may want to get a claim or restraining order against him.
This won’t be fun and it definitely won’t be easy. But for your sake (and his too), he needs to go.