DN turned 17 last week, he's lived with us since lockdown due to having an argument with his DM. It was only supposed to be temporary, he made up with his DM and told us he was happier here so we all agreed for him to live here and see his DM whenever he wanted it seemed to work well.
He met a girl (well woman as she's 20) about 2 months ago, and since then his behaviour has gotten awful again. He stays out until the early hours, is disrespectful, brings his gf over even though we haven't agreed, stopped attending college which resulted in him being removed off of his course which he doesn't seem to care about and has been spending all his time on his playstation.
This evening DH is working nights and I put DD to bed. About half an hour later, he woke her up by talking very loudly on the PlayStation I went into him and asked him to keep the noise down as DD was trying to sleep. He then woke her up again so I turned the wifi off which was probably a bit unreasonable but DD was very tired as she hadn't napped today. He then shouted and swore at me so I turned it back on.
WIBU to tell him I don't want him living here anymore and ask him to go back to his mums?