All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad is His slave and Messenger.
Marriage has great Islamic objectives as it is a comfort for the soul, preserves chastity, and is a means for increasing the number of offspring, and it has other objectives as well.
When the couple resides together, this helps them to achieve these objectives and perfect them, but if the spouses reside far away from each other, this may lead to missing some of these objectives.
Therefore, it is much better, whenever possible, that the married couple stay together in the same city. The husband should try his best to reside with his wife, as this is better for them both.
We advise you to continue to try to reach an understanding with your husband regarding this matter and to seek the help of whomever you think could influence him. It is hoped that he would respond, Allah willing, especially given that you mentioned his eagerness to follow the Sunnah and his good treatment to you.
And do not forget to supplicate Allah as much as possible and ask Allah to soften his heart, as supplication is one of the most useful means for a Muslim to achieve his objectives; Allah says (what means): {And your Lord says, “Call upon Me; I will respond to you.” Indeed, those who disdain My worship will enter Hell [rendered] contemptible.} [Quran 40:60]
Allah knows best.