Unfortunately, it is during times of great grief that those going through the fire find it so difficult to "see the bright side!" They do not want to hear Bible verses. They do not want to hear about how loving and merciful our God is. They need time to deal with the reality that their lives will never be the same. They need time to work through the greater reality that God really does love them, and the trial they are experiencing actually "does have a silver lining." Just don't tell them that. That is something they will need to tell you after the Spirit of God has worked His healing in them.
The other day, a friend on Facebook told me about the sudden death of her fiance in an automobile accident. It had been nine months, and she said she just needed to get on with her life, mostly for her son's sake. The Lord led me to ask her if he was a born again believer, and she responded, "Oh yes!" She began telling me of their time together in God' Word and in His house. When she finished, I asked her if the funeral was one in which the Lord was praised because everyone knew "he was in a better place." She said yes, and that several of his family and friends had dedicated their lives to Christ at that service. I then asked her if he would have gladly given his life if he knew many would be saved from an eternity in hell, and she again said yes. I said, "That's exactly what he did!" She not only had great peace knowing that, but she saw him as dying in Christ's service. Quite a change! Below is a chart I found on Facebook, and it said the author gave her permission; I will simply pass it on. What it ultimately says is, "time heals all wounds," and "this too shall pass." Give it time.
Time, space, and the work of the Comforter is the answer to one's grief.