My ex for 30 years name is on an investment that I bought with my own money. We each had our own investments and shared investments during our not too long marriage. This was overlooked during a very amicable separation. I've never needed the money and was waiting to see who died first. Now I want to build a barn and the investment is now at an all time high at over $40,000. I'm thinking of offering her $5,000 to sign off. AIBU?