Boyfriend smokes in the house and gets angry when I ask him not to.

I absolutely hate smokers and would never be in a relationship with one, weed or nicotine. However I’ve voted YABU as it’s his house.

OP, you are not compatible with this man, he enjoys something that you hate. You cant stop him from liking it, he cant stop you from hating it, there is no mutually acceptable compromise.
Move out. Dont tell him, just organise it and let him come home to find you gone.
If he tries to persuade you to come back it'll be because he wants someone to share the bills & the domestic work. Ignore him & move on with your life.
Seriously OP what else do you want us to tell you?

Leave this drug addict. He could get worse, he could lose his job, then owe money, then be harmed over debts to a drug dealer.

It is not a bad thing to be single.

You said yourself you are not in a good place so time to plan your exit. Take back the power. He is a drug addled pot head smoking arsehole. He literally has shit for brains.
Do not let him drag you down with him. You start by walking out the door.

This whole relationship is a lost cause. He is not making you happy and you are not thriving in this relationship. You definitely need an exit strategy here.

Does he need your rent to pay to help pay his mortgage?

I know I'm not unusual in saying that someone insisting on smoking in the home I live in (or even smoking at all) would be a deal-breaker for me. But as it's his house and he's a selfish prick you can't make him stop unfortunately.

For this alone never mind the weed smoking (which stinks) you need to get yourself together and move out. If that means moving completely back to where your f&f are so be it.

Don't continue to allow yourself to be treated like shit by someone who sounds like a total shit.

He's a drug addict. He isn't going to change. If he's on 'at least' six joints every day and becomes agitated and angry if he can't smoke, he's not just an ordinary recreational weed smoker who has the occasional puff at a weekend. He's seriously hooked.

Think of it like booze - if someone has a couple of beers or a bottle of wine with their dinner a couple of times a week, or gets a bit tipsy on a big night out, that's a normal drinker. But if someone starts drinking as soon as they get up in the morning and gets the shakes and cold sweats if they can't have a drink, that's someone with a really serious alcohol problem and that person cannot reasonably function normally in a relationship (or in life in general).

I appreciate that it's very hard for you to leave but honestly, you really must do everything you can to end this relationship. He's treating you appallingly and he doesn't love you. He loves weed, and nothing else. His constant threats to throw you out and his angry outbursts at you are abusive and he's wrecked your self-esteem - please, please seek some help and try to leave.

I know you didn't. Somebody else did.

Well - ultimately, he's right. It's his house and he can do what he likes.

You've made yourself very, very vulnerable. I would move out before you get even more stuck.

Move out and move on. It is his house and he can do what he wants - but unless you want to spend your life living in a house where you have no say and no voice, this is not the relationship for you. The fact that he holds it over by threatening to kick you out anytime he feels like it, it abusive and unhealthy. You have a good job, find somewhere else to live and tell him where to go.

start looking for work near your family and friends and move back home for a while. He’s not a good man. What happens if you have a baby? Will he smoke around them too? He’ll always find money for weed when you may need it for other things. Walk away. There are better men but tbh I’d rather be alone than have a crap one.

But presumably you did all of that knowing he was a smoker and that he smoked in the house?

He's got all the power here OP and there's nothing you can do about it. He's not a nice fella, walk away, there's nothing in it for you.

Use what you pay in rent to rent elsewhere......even if house share....
If your jobs going well that can help you move on.... U just don't need this weight too.....

This

Well if this is the situation then you need to move out. Your boyfriend has all the power and you can never feel secure. I'd rather rent a room in a shared house than live in such a precarious situation.

But it was your choice to move surely? How did he manipulate you?

A house share would be better than this. Start to look for one straight away. This isn't going to get any better, he will just completely wear you down.

The only thing stopping you moving out is you.

Is this REALLY what you want for a boyfriend and potential father of your kids? A guy that clearly doesn't respect you!

It's not hard. Just go onto spareroom websites, find a short term room to rent near your work and MOVE OUT.

You can then decide to look for another job back up near your friends and family, or make some new friends.

How can you have lived there for so long and have no friends?