[ Why yes. She may have obsessively talked about how excited she was that he was coming to get her and how much he loved her while you guys were traveling together...

... Just failed to mention who he was.

But, she doesn't exactly look happy about him right now. ]

He's... Omi-kun is someone I cared a lot about back home. I even got him to go to a party with me! And I was going to introduce Papa to him.

... But he's Mamoru-kun now. ... Oniichan.

[ You probably don't know what that last word means. But she says it with a great deal of uncertainty ]