Hi all I'm feeling very torn on what the right thing to do is and would appreciate some neutral feedback. My partner and I are stuck at logger heads about our finances and living together, she has a house with a mortgage (around £400 a month) she also has a child from a previous marriage which she receives benefits for (£450ish) as well as maintenance from the father, she works 31 hours a week so has an income too. We have delayed moving in together officially due to the financial disagreement what I should be paying. If I moved in she would lose her benefits or at least part of and requested I split the bills which I'm more than happy to do but also pay her whatever she loses in benefits as her wage covers the mortgage and Bill's the benefits is her money for the month so this is where it gets complicated we are also trying to save for fertility treatment that so far she hasn't contributed towards saying she cant afford to so I have being paying £200 into a savings account for this every month. I have explained to her if we live together and split the household bills she would already gain money back from this to give her additional spending money for the month after bills, however I dont have the money to give her extra to make up her loss in benefits and I pay for the fertility treatment I literally would be left with £53 a month and I earn an ok wage. I have suggested going back to work full time as her child is 9 but her workplace doesnt have any full time positions so should I be expected to make up the benefits she loses and split the bills while also funding the fertility? she says yes and I say hang on if I'm splitting the bills and paying for fertility and she is paying half bills and a mortgage on her house not ours surely I am already paying my way without contributing to her monthly income for her lifestyle. To those that have got this far you'll notice I havent mentioned the child maintenance as I dont class it as part of the income however when all of that money is spent on new clothes, fancy food and take aways, days out for the child and none put into the actual day to day living costs and I'm being forced to live on pennies I find it quite frustrating. So I feel really lost and guilty because I love this lady and I want us to work this out fairly and continue with our life together but we cant seem to agree on the financial side. Am I being selfish or unreasonable? Please be kind I just need an unbiased view to know I'm doing or not doing the right thing.