It's an unbeatable pain to loss someone close to heart. I pray God gives you strength to overcome it. In our life we lose, get suffering and happiness side by side. But unforgettable memories of loved one always be with you. You may lose her in a real world, but in your memories she always keep alive with you. One-day you will join with her afterwards. So don't grieve, pray for her to be blessed by God in afterlife. She will watch you over from there always.