Been with DP 5.5 years but friends prior to getting together for years. I have told him multiple times I want to get married soon but there is always an excuse. Most of them are money related but I'm not looking for a fancy wedding just a commitment to the future. The latest comment has really p*ssed me off but unsure if I'm being unreasonable. My sister has been known to avoid paying me back now and then (not major sums we are talking under £100 usually but with the latest about £300 for a trip) and I was complaining about it to him.. we live together but we don't share finances and I never comment on how he spends his money. He said that this is the kind of thing that makes him doubt wanting to get married and I should stop speaking to her. He says it financially impact him as the less money I have, the less I have to pay for stuff.. AIBU thinking this is a bit manipulative to twist it into a reason for not getting married?