Sister caught in between guys?

my sister is not a player, but is stuck in between two guys and one of them 'brandon' lied about his best friend, (the second guy, "devon') saying that he said he only liked her because of her body, not her face. but she wrote devon and he said that brandon was lying and that he doesnt only go by looks but by personality and that she had one of the best hes ever met. she used to like brandon a lot but he took too long and just asked her out yesterday (while she liked him he was going after another girl)