I think when you lose someone you're really close to and love a whole lot I believe you can SMELL their scent. I lost a lot of my family my mom, all my grandparents..Yes, when you lose someone close you can lose your mind over them..I hate to sound nuts but I think a person still can be in loved with someone close to them who died.
I think when someone loses a Wife, Girlfriend, Husband, Boyfriend - I think it takes lot to get over them and I really don't think you never can recover. It's hard to pinpoint it .