Most Helpful Girl
She is holding on to you still. It gives her some sort of reason to contact you and you also have visual reminders of her about the place. As already posted, she regrets dumping you and is not sure how to approach this.
With regards to picking the Tuesday, it could be either that she was just thinking, I will show him that I have a busy life so I will have to come after I've played sport. She let herself down when she said that she could come on the Wednesday. Or he is hassling me so I will just pick a day early in the week.
The letting you heal part is rubbish - she regrets it and wanted to leave her stuff at your house in case you made steps to get her back, etc. She's playing games a little bit.