DS only just turned 14 has a girlfriend and they are besotted with each other. Lots of hand holding, cuddling etc. They get on really well and are always laughing and chatting. It's very sweet. She is at our house a lot and they spend their time in his room. Rightly or wrongly I do not insist on the door being open. But I make sure I am here 99% of the time and I regularly knock and go in to say hi or ask them a question etc. They are often lying on DS bed but always fully clothed and don't look flustered or embarrassed when I go in.
If I go out it's only briefly to grab something from the shop.
This evening I could have gone to watch other DS play cricket with H which would have been nice as it's very social, there's a bar and lots of my friends are there with their DC. But I didn't go because I don't want to leave them here alone. That's sensible isn't it?