Professor8Brian8Oblivion

Is there any way to change my relationship with Kiarra? I inadvertently changed the CC with the Joja Warehouse and ruined my relationship with Kiarra. I changed it back once I realized what I had done and figured out how I had done it, but Kiarra still won't marry even though she is my girlfriend. Surely someone has figured this out. Any help will be highly appreciated. We all want want we can't have...lol