Kepner reveals that she is a virgin because she is a Christian and made a promise to God to stay a virgin until she was married , she also states that she thinks men find her annoying after yelling at Alex , Meredith , Lexie and Jackson about secrets , she claims that the fact that she is a 28 year old virgin is not a drinks conversation . She shows potential as a trauma surgeon during a trauma drill . She develops feelings for Alex Karev ( Justin Chambers ) who almost makes her lose her virginity . When Avery , now her best friend finds out about this , he assaults Karev . Later , Kepner agrees to go on a date with Robert Stark , believing him to have a good side . Her fellow residents make fun of her which prompts her to break up with him . April also impresses Owen Hunt ( Kevin McKidd ) and she is ultimately granted the position of Chief Resident in the season seven finale . Kepner initially struggles with her new status as her fellow doctors do not listen to her and do not take her seriously .

Question: who becomes chief resident on grey's anatomy season 7
Answer: Kepner