Krystle,
I am very sorry you're no longer with us. But I know with all my heart, you're in a much better place where you don't have to go through all the pain and suffering.
I enjoyed my time with you when we dated and chatted. I wished things would've worked out better between the two of us, but it wasn't meant to be. Despite that, I'm glad we still kept in touch, knowing that you still cared about me just as much as I cared about you, as a friend.
To talk about you, would be like draining out a vocabulary of superlatives. Despite only dating for a short time together, I knew we shared and loved a lifetime's worth. I'll never forget you, Krystle. You are forever appreciated and loved.