After they had invaded the attack Rachel left the others, snooping around all the dead as she ripped their hearts from their chests, the hybrid really did miss eating the hearts of others even though her angelic side would vomit at the idea if it could.
She wasn't feeling all to social either as she wanted to go and read that book she found on angels and angelic symbols, so as soon was she was done collecting her next meal Rachel started to head off, munching away on a raw solders heart as she went to find her way to her room, hoping that no one would stop her along the way so that she could get to some much needed studying.