Elena was that for awhile. Now she isn't, and that's the end of the story. I haven't had nearly enough to drink for the rest of it.
Do you have any idea what it's like to be second, always. Second with Dad, second with you. It was always Stefan, then I was a vampire prisoner, and spent five years with so-called doctors feeling up my internal organs, and not one mother fucker came looking for me. Not fucking one. So, I got desperate and left my best friend because I couldn't handle it. Finally there was Elena, and she had me stupidly thinking we had this perfect thing, and then I died - and I wasn't worth remembering. I guess you get what you deserve.
Your world is a twisted place. I am still the fun one at least.