If all school work is done, grades are acceptable, we allow our DS to go to girlfriends house after school or evening (or she to our house) IF a parent is home. If no parent home, to bad. And I check (text with parent) every time.
Sometimes they do homework together. IF there was a missed assignment at school that week, nope, they can't see each other.
Phones are never allowed at the table (by any of us) and always plugged in and charging on the main level starting at 9:30pm (bedrooms upstairs, teen hangout space in the basement). If they are at our hoise, in the basement, the door is left open, and I go downstairs frequently.
It's all fine. They are sweet! We have had many conversations about respectful relationships, had and continue to have sex talks, and so far anyway, he has a good, what I would call healthy balance of hanging out with her and hanging out with guy friends and doing his sports activities and keeping grades up. Oh to be young again and have that much energy!