<prompt> Human: My SO and I met a year ago and have been in a long distance relationship for the past year, between UK me and Finland SO. I can see myself being with them in the long term, so recently I have been pondering about future arrangements. Although I have been flying there every other month to stay for 1-2 weeks but in the long term one of us needs to move.Our consensus has been that they will eventually move to the UK for me, since without knowing Finnish I dont really have a realistic chance for career progression in Finland. SO has lived in Finland their entire life, has a stable decently paid job at a big company, a house with about 100K mortgage left, no debt. Net worth is 100K including house and stocks. I love my SO and it would pain me to see them having to uproot everything for me with no guarantee they will like life in the UK.I have been entertaining the idea of giving up everything here in the UK and move to Finland. I have 40K in cash and liquid assets, no house, no debt. In the UK I have been running a small online business which Im not entirely happy with hence Ill be open to retrain in a different field. I also have piano qualification so I can teach piano hopefully before I learn the language, retrain and can find a full time stable job. If I go down this route Ill be living with my SO at their house. Im looking for some advice on the fairest way to go about living arrangement before proposing this move to SO. Should I be paying half towards my SOs mortgage? Particularly if we both understand that Ill be facing a big hit in income and taking a hit in saving to move country, time and cost to learn the language retrain. Their mortgage is 550 a month total so its not a lot between the two of us. Bills are around 200 a month total. Food cost and traffic cost are at least double of what I pay in the UK. Im just trying to do the maths in my head to ponder if I can afford this move.  <response>: You should pay half of the cost of would be to rent a comparable house in the same area. Her mortgage shouldnt impact you essentially choosing to rent a room or share of the house. You didnt ask for advice on where to live but theres nothing wrong with choosing to live in neither home country and choosing another English speaking country just for food for thought. 