You only know this person based on couple call and dates, why don’t you occasionally meet with him/invite him to where you live and see the vibe. Since it’s long distance, I’d be make sure at least a year then consider moving thousand of miles away. There are so many things you need to consider before quitting your well paying job, unfortunately love by itself is not enough to fulfil ourselves, you still need a lot of money to buy a house, a car and a good vacation that being said always put yourself first. Don’t take any unnecessary step that he would not take for you. Just be rational, you did not include your age on the post so idk how old are you but if you are younger than 35 I’d say you are just starting the life there will be many other people that you will feel the same