I'm of the opinion that it is always a kind and appropriate decision to get in touch with someone who's lost a loved one to remind them that you're thinking of them and have fond memories of the deceased.
Mallory OrtbergI don't think unfriending your old crush on Facebook will do much other than remove him from your Facebook feed. Don't beat yourself up over what you dream about; there are a lot worse things that could slip across the transom of your unconscious mind than an old high school crush who was always nice to you.
Mallory Ortberg