My son is 22 and has a new girlfriend and she keeps staying over for example 4-5 nights a week. We haven't really been introduced, she turns up goes to his room without even saying hello or bye when she does actually leave, they have loud sex during the day or early evening and she's now started leaving things at the house. Am I being unreasonable to think she shouldn't be staying round so much so early on in their relationship and that I don't want her staying round so much and maybe only at weekends?