Sorry to hear about the 'rents issue...But happy belated birthday, glad to hear you had an amazing time.
You are not overeacting or being stupid. What i am currently finding out is that alot of what i am going thru emotional and mentally right now had a lot to do with my relationship with my parents. Which from the outside looking in was perfectly normal and fine, i have great parents, who love and care for me very much. But there were minor events throughout my life that had dire effects on my psyche and mental state. With that being said, you are completely lucid in your way of thinking and you are at an age now, where you can start to distance yourself from them...while trying to maintain an adult relationship instead of a adult/child relationship. It seems to me that even tho they tend to blow you off, they may be doing it to keep you close to them(weird logic i know) and they may not realize how much it is driving you away. taking that relationship to an adult level could be a good thing and one way of doing that is moving on and putting some distance between you all.