Me and a friend bought something together, 50:50. We both paid several hundred pounds each. Exactly a year later, I wanted out. Friend (now an ex friend cos shes disgruntled that I wanted out) said she will buy me out, paying the original price back to me. Trouble is, the asset is now worth several thousand pounds. It has appreciated significantly. Aibu to think she should pay me half the current market value? She can very easily afford it BTW.