The fourth one would have worked but since you crossed it out....I honestly think you should say something to your mother because even though his intentions were good he technically threatened his life. He isn't even your stepfather really so technically his opinion doesn't have to be taken into consideration. Plus both of you guys are still young. I could understand a bit more if you guys were like Middle Aged or something but you're about to be eighteen and you said he is two years which calculates him at nineteen. He's still a kid and trying to decide what to do with his life. Talk to Carson and let him know that he doesn't have to rush to get a job and that's there is no pressure. Or that he doesn't have to change cause by your description he seems like a pretty awesome guy....
Did he not want you to keep quiet about it? I'd say 3 then see what happens next really. If he gets another threat then maybe say something. Though this is quite serious. Maybe talk to your mum about it. If you confront Pete, things might get messy so at least your mother should know aswell. I really don't know whats best though.
I think telling your mom, if they aren't even married yet he has no say over you or your life. Plus you're almost 18. It's your life do as you see fit.
I would go to my mom then do number one. It's one thing to give a little speech. He threaded your boyfriend, which by the way is against the law. Plus your boyfriend is twenty. Your step-dad has no rule over him. But you also have to think, your boyfriend probably knew he had to change his appearance and get a job sooner or later. Everyone does. It's up to him on what he wants to do. Obviously he cares very much for you.
But you can't tell him to quit his job and not cut his hair. Your mom and you can explain to him your stepdad can't do shit. He can choose what he wants to do after that. You'll just have to support him in his decision. It's very hard being older and not having a job. Everyone judges you and looks down to you. I'm sure it's worse since he is a boy, and frankly boys are expected to have jobs. Your step dad might have meant well with that, but threatening him with you was wrong. It's your boyfriend's life not your stepdad's.
That was so shitty of your step dad. I would be angry if my dad did that. My parents don't care about jobs or not because jobs are for personal gain. It's not enforced here. My job is at home anyway.
I personally like the idea of burning Pete alive. That's just me though. I say do whatever feels right to you. You're almost an adult, it's not like Pete can keep you from seeing your boyfriend anymore.