I’m worried about ds(17)’s relationship. He’s been seeing his gf for a few months and she seemed fine at first, if a little full on. Alarm bells were ringing when he was asking me to make excuses for why she couldn’t stay round 2 nights in a row - he didn’t want to tell her himself. Then he’s been late back from her house multiple times because she was upset, or crying, and didn’t want to be alone. She writes him love letters and sends gifts all the time. She doesn’t go to college, or work, and has no friends - she has seemingly fallen out with everyone she has ever been friends with. She doesn’t stop him seeing his friends, but I get the impression she doesn’t like it (she gate crashed when he had some friends round for a sleepover). Their relationship has become more volatile and they had another big bust up last night - he wouldn’t tell me what about. He’s asking for her to come round tomorrow as if it’s all fine - I am getting uncomfortable being around her as I don’t trust her. This isn’t his first serious relationship and in fact he split up with his last girlfriend because she was quite controlling, I feel like this time it’s even worse but he won’t discuss it and I don’t know what to do.