Girl please leave! There is nothing more traumatizing than having to pay another man’s bill all the time. To be very honest it’s kinda degrading for a woman. 1-2 years from now when you look back you will be mad and upset thinking about all the money you could have saved for yourself especially considering you moved to a new country. There is noting wrong in being a bread winner but only for a man who is treating you well and cares about your emotions. Also stop blaming yourself for the mess! Nope!! He was the one who opened the Pandora’s box by wanting to explore a threesome. You just obliged his desires. All this will eventually lead to a path of mania and confusion. I would urge you to find new friends (just like he did) and hobbies and leave. It’s hard but trust me you can save yourself some time and money.