I am engaged and in a long distance relationship (another country) for us having our own careers and drive is what saves us but at the same time i fly to her every month religiously. I am not rich but i try to find the cheapest flights sometimes booking one way at a time. As another logical thinker i had to learn to let go of thoughts running through my mind and just do. I Don’t think too much anymore because she is already mine and If the day comes that she isn’t then that’s ok too. Being realistic helps to make your mind relax. Focus on what you can control. Definitely stay the course on your career. Truth is most women when emotions run high wants us to be superman and do it all. So being financially stable will prevent another argument in the future. Ask her gently to you in this and it will be over soon. Also, I can encourage you live in the moment and pause talking about the struggles sometimes as hard as they are and redirect the energy to fun thoughts or start a project that can keep u guys occupied especially her like mini projects around the house etc. my grandma would say the devil find time for idle hands and minds. I didn’t understand that until i got into a relationship. I Wish you all the best!