16 - 17 years old : Being too exclusive, wanting to be just the two uf us all the time, thereby refusing to "share him" with his friends and not socializing enough. Also, thinking sex was the best thing I could do to show him my love, resulting in a relationship where all we did was sex. Needless to say, he got bored of it after a while and I had the worst heartache of my life because I was genuinely in love and just too stupid to open up to his world and his friends...
