DS (18) has been seeing his gf for about 6 months. She lives in next town which is an hour bus ride away. Neither of them drive.
At the beginning he would ask if she could stay over which we said yes to but over time it's become the norm for her to stay most nights.
It's been getting more & more frequent (DS has never stayed at her family home). We feel she has practically moved in and we want our space back. I have recently had a close family bereavement and need time alone to grieve but she is always here even when DS is at work. She is a student hoping to go to uni in September.
AIBU to set some boundaries around how often she can stay or should I just accept with older teens this is to be expected & she's likely to be moving away in 2 months anyway.
How would you feel?