I’m not saying no changes whatsoever, but a big move is going to have an impact. Just like a family death, divorce, etc. How big and negative that impact will be of course also depends on how well you support your children.
If you want to know more about this, I suggest looking for information on attachment theory! That is what most of this is about.
Speaking from a psychological perspective, it’s not good to change countries or make big changes in your surroundings for kids period. It’s a harsh truth, but something that’s important to keep in mind. It’s up to your own discretion as a parent to determine whether the change is worth it. If moving will put you in a better situation that will ultimately be better for the children as well, whether thats financially or emotionally or through quality of life etc. then it can still be the better choice. But the negative impacts can not be denied.
It sounds like you’re experiencing this reaction because you make women uncomfortable, so they’re worried about giving you any incling of an idea they might be interested in you, because they can tell you’re the type of person to not leave them alone once they do. So no, in no country you will find flirty women until you become a nice fun and SAFE person to flirt with.