Married for 15 years, our children are at uni, both work full-time and always have done. Completely separate finances and always have had. Husband would never share finances, accounts, etc. I pay the mortgage and food/household goods and husband pays the utilities, council tax, etc, which works out about equal. We each have a car individually financed by ourselves. We strictly stick to our individual respective cars. Husband's car is going to be in the garage for 2-3 weeks having major work done. He works 1 hour away so a 2 hour round trip and he uses his car for all his 5-6 appointments each day. I work 2 miles away, approx 40 minute walk each way. Husband is going to hire a car for work as he is contracted and does not get any paid leave. AIBU to not offer him to use my car for 2-3 weeks and I can walk to work each day? Or should he sort his own transport issues out as it is not my problem?