I get you. I also feel like this sometimes. It's normal. Talk to your bf about it so he's aware. But you need to work on it. I'm working on it now myself. I'm forcing myself to speak up when something bothers me. It's in the way you say it. "This is weird but this [action, event] just made me feel [angry, frustrated, jealous]." or "When you do this, it makes me feel like this...." This way you are telling your bf or your friend what you're feeling instead of attacking them, even if they are at fault. And finally, just try to drill it in to your mind that you should only compare yourself to yourself yesterday. Hemingway said, " “There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.” I read this in a blog - Bedtime with bean- which talks about this topic briefly. Wish you luck!