Who can I trust?

So the "friend" that was supposed to come down yesterday stood me up. He was in a fencing tournament. We had discussed him calling me when done and we'd hook up somewhere for a drink. He informed me that he should be done around 3:00. Come 7:30 no text, no phone call, no nothing. I wouldn't have minded at all if something came up, but let me know. I didn't even get one of his texts. That sort of thing really pisses me off. It's just rude. Honestly, if I can't even depend on my friends to treat me like a human being then who can I?
Next slam came my from own sister. She sent me my B-Day card already and had it custom made with B's name on it. The card was supposed to be funny, but it didn't slam him at all. Even if it was a slam on him, I don't need them bringing him up. No clue what she was thinking. I understand that she rarely thinks at all, but still. Come on. I think I'm gonna go hide a hole now.