I'm a college freshman. I'm with a high school senior from my hometown. This isn't a carryover from high school, though - this happened around Spring Break. We agreed to do our best to work through the distance problems and crap, but I'm beginning to feel I underestimated the severity of the trust issues I've developed.
See, both the girls I've been with before her dumping me for other guys after a year, the second one having cheated on me before doing so. This has entirely predictable results.
So, a year and a quarter after... actually, for simplicity, timeline:
November 2007: Got with first girlfriend
December 2008: First dumpage, got with second girlfriend (terrible idea, I know. Shush. I've come to terms with that).
December 2009: Second dumpage
March 25, 2010: Now with third girlfriend.
She basically had the same thing done to her (one time only though). I know she would be straight-up about it if something were to happen, and that it probably won't, the simple fact is having this bullshit sprung on me out of nowhere is all I know. Like 95% of my relationship experience is being very suddenly dumped, possibly with a side of "You were cheated on." Most of the relationships I've seen around me have ended the same way. I'm at a point where I'm not exactly aware that there's a way for relationships to go other than that path; I know of them, but they're not exactly real to me. They're mythical ideas I have no experience with and no evidence of.
So... yeah.