frubam, not turning him down is worse actually. Because she strings him along giving him another angst fest as she is obviously still not over with her past and what is worse not even opening the door for him.
She strings him just like she is stringing Negishi. She just cannot find any honesty in her. Yes sad past and all that. but it is really not excuse to not be honest with someone who is considered to be your friend, because you just end up hurting them more.