I have lost the love of my life

This morning I drove my now former boyfriend to the airport. We are both from different countries living in yet another country. He was under an internship visa and I am under a work visa. The only way we could have stayed together would be to get married and put him as my dependent, but that would have obliterated any chance at professional growth for him since the visa status he would have been under has an explicit no work clause. So we decided that for now it is best for both of us to work on our careers and revisit the idea of being together in the future. I know that

Sorry, I clicked something before I finished and it posted incomplete. I was going to say that I know that people say that if you love something you should set it free and that if it comes back it is yours. I know I am definitely his, but what if he is not mine? For the first time in my life, I found myself in a relationship that didn't keep me wondering if there was something better around the corner and now I've it. I feel like there is this huge hole on my chest and I keep trying not to cry.