[Eternal]

How long has she been with her current boyfriend? When you get comfortable in a relationship, sometimes girls don't put in as much effort to look nice which could be the case here.
Additionally, while those do sound like signs that she may like you, as Tayla said you shouldn't consider it an indication that she does. If you really want to know, you could directly ask her and let her know why you are concerned about this. However it could be she just asks when he's coming because she's curious or because she wants to make her plans around what's going on in your home.