I wouldn’t have a boyfriend or girlfriend of 13 days staying over in my house, but you are being completely controlling to say your son can’t stay there.
Your ds is also your ex’s ds, and whether you like it or not who he has to stay in his house when your ds is there is literally none of your business.
Or how would you feel if he decided he wasn’t going to allow his son to be in a house with someone he didn’t approve of and came to fetch him so it couldn’t happen?
Honesty these women who suggest that they can disallow what goes on in their ex’s house and can withhold contact accordingly is ridiculous. These are presumably the same women who would be seeking a court order if the ex refused to return the DC because he didn’t approve of how they were living their lives.
If your ex doesn’t agree with his dd having her boyfriend over to stay then that’s fr him to police, not you.
She’s an adult, and to suggest that she’s out of control because she has a 22 year old boyfriend and is <gasp> sleeping with him is prudish to say the least.
Assuming she’s not running a drug cartel her behaviour for an 18 year old is, in fact, normal.