I'm the same. I'm offended by the smallest things, whether it be a litle snide comment or something similar, and I'll get pissy at someone over it until they make the effort to resolve it. It's not too much of an issue around friends. If your buddies aren't complete douches, they won't give you a reason to behave like that. They will however kid around with you and exploit it for jokes, but don't take it to heart.
When it gets to your love life, it can be an issue. Me and my ex would fight -constantly- because she'd say something rude, ignorant or otherwise be a ***** and I'm unable to just drop it and forget about it. If you're in a functional relationship, your girlfriend won't be saying things like that all the time to set you off. On the occasion you two do fight, just remember: There's no sides in relationships. You two are in it together and don't drag stuff out with her. If there's a problem, just avoid eachother for a while, then kiss and make up. Problem solved.