If I died today, I want you to know…
There are three things you should always learn to say (and when):
I love you
Some people have a hard time telling others how they feel. It could be that they were chastised by their parents for expressing themselves when they were younger, and were therefor trained to keep their feelings private. It could be that they don’t actually feel anything for you. It could be that they are just that selfish/self-centered. It could be that they don’t know how to express their feelings.