He still owns them. He just didn't bring them with him.

[Alec had hoped that he'd be able to get Sebastian to smile. When he did... It was good that Alec had had that talk with Magnus because he'd be feeling guilty right now. He grinned a little foolishly before he gave himself a mental shake.]

I'm just going to sit back and watch the battle of wills. Don't be surprised if you end end up in eyeliner and sequins.