Do I have some kind of personality disorder?

Throughout my childhood, I had a lot of problems socially -- whether it be due to the area, the type of people I was around... but lately, I've felt like my relationships can be unstable -- for me. A friend may not text me for an entire day, and for some reason I'll get really spiteful and feel like they're just not my friend anymore. A friend may do something better than me -- same result. I can always, always see through these feelings of mine, and always know that it's just that -- my "screwed up feelings." But I was curious if perhaps I have some kind of personality disorder? Or the start of one?