She really did not think it appropriate to tell him. Elena was in danger and she did not do anything against that! Right now, he did not understand her one bit.
„Well, you know if you don’t want people - especially certain ‘bitching’ boyfriend - to read what you have written on that computer thing, you have to send private messages.” Sirius glared at her, eyebrows arched in a provocative way. Sirius waited for what she had to say to her defence.