Wrong to be upset?

So my boyfriend had a bad day today. We didn't get to see each other but I tried cheering him up as best I could through text & etc.. Well nothing I've done has made him feel better, but he randomly calls me out of nowhere half an hour ago telling me his friend is back from the army & he's driving to go see him & that this just made his day & etc etc etc.. He sounded so excited & enthusiastic. I just feel kind of crappy really, because I've been trying so hard to make him feel better and it didn't do anything, and I feel like he's never sounded nor has ever seemed that excited about anything when it comes to me. He hasn't seen that friend in a while so of course he'd be excited, but I can't help to be jealous & just depressed. I just feel like I'm not good enough to make him happy or make his days better.. Am I over thinking things? Am I wrong to be upset? Thank you for comments, I appreciate it!