<human>: We met about two years ago when i moved to the same city as him. We live together now, and we get along really really well, rarely have arguments, and are like peas in a pod. This recent year we both decided to jump start our careers and we both took the necessary tests and applied to professional graduate schools. 

Things worked out really well, and my bf applied to vet school and got accepted to a 5 year school in London. I'm super happy for him, but also really sad because I also got into med school, but a 5 year program in the US. He is thinking of transferring back to a school in the US after a year if he can, to be closer to me, but there is a big chance the transfer won't work out (since a lot of factors go into making a transfer successful), in which case he would have to stay there the entire 5 years.

Looking for advice from couples who have done extensive long distance and succeeded coming back together. How did you guys make it work? What is important to remember to make long distance successful, especially if your S.O. is in a different country? And is long distance that is for this long even possible? A lot of people have been telling me that 5 years is too long, but I think we have a relationship that is exceptionally mature and could be more than willing to invest being in a long distance relationship for 5 years since we think it could be worth it.

Condense the text into a few key points
<bot>: We both got into grad school, him in the UK for a 5 year program, me in the US for 5 years. Want to do long distance, how do we make it work?