Ikr?!! SOOO much has happened, how could she even still think that?! It's as though she still feels guilty for dating Elena's brother... which she obviously shouldn't since Elena clearly understands how the two feel for each other and doesn't have a problem with it at all. If anything Elena is happy that her brother and best friend, after all the hard times they have endured, can finally find happiness in each other. It did seem a bit out of character to me, but I enjoyed the scene because it made me giggle and roll my eyes... like come on Bonnie! He's your damn boyfriend!! The final scene HAD to make up Bonnie's mind, IMO. If Bonnie doesn't know whether to call him her BF after that... then argh!!