24F thinking about leaving my 42M fiance

I got engaged to a man last year. it’s currently 12:28PM as I write this and I’m sitting on the couch with my son who’s 3 and a half while my fiance sleeps in our bed. I’m so tired and just want to sleep - but that is what he is doing instead. it’s always what he’s doing instead.

my son is his step son. at first he was kind to him, would play with him, etc. now everything my son does he has an issue with. he’s always saying things referring to ‘whooping his ass’ to scare him. he’s not encouraging towards my son, kind, always telling him stupid things like he can’t bring his small toys from his room into the living room.. things I personally don’t have an issue with and can be resolved by putting them back when he’s done playing with them. yesterday my son was just talking in the car and I guess he was getting annoyed with it, and just yelled out “BED TIME IMMEDIATELY!!”

another issue is we’ve stopped having sex and I feel extremely disconnected from him. 2 months ago I supposedly gave him a yeast infection, and because he lives out of the country, my country will not give him free healthcare and he couldn’t afford it. so we did at home treatments. he never flinches anymore if something grazes his area, he never makes the ‘in pain’ face when having to pee or anything, like he used to - but he still claims to have this yeast infection (I’ve seen his penis and it looks normal). I think he’s lying to me to just not have sex with me. we haven’t had sex in 2 months.

I’m extremely fed up with him - this morning I tried to have a conversation with him about how he treats my son and he said “then don’t ever ask me for help again”. how is that fair? I said the conversation wasn’t an attack and I was simply trying to tell him how I feel and possibly see some changes in his behaviour, but he just wasn’t having it.

I’m afraid when our baby comes he will treat our baby kinder than my son that isn’t biologically his, and that my son will feel there is something wrong with him, when there isn’t. his step dad is just a prick.

the reasons why I don’t leave are a few. he lives in a different country I am planning on moving to with my son. I never finished highschool and don’t have my license due to previous mental health issues. I have literally nothing going for me. he on the other hand has a great job lined up for him that will provide for our family. we will have a house and everything. also I wouldn’t be able to coparent with him if we split up, as he’s in another country and we are a 12 hour drive apart. I also feel like since I soon will have 2 kids with different fathers and nothing going for me, I will be worthless in the eyes of men and never find love or the support of a man again.

please help..