DD18 met her BF 6 months ago. Since meeting, we have noticed that DD is constantly on her phone, and appears to be messaging on Snapchat and scrolling through TikTok all day long if not seeing him. Her life revolves round her phone which is never out of her hand. She now stays in her room most of the time and has also turned into a night owl and appears to be online until 2am or later where previously she would be getting 8-9 hours sleep at night. She does not do any fitness now which she used to enjoy and has little interest in seeing other family members or her friends. I feel this lack of sleep probably accounts for DD’s change in behaviour, now being short tempered and usually unpleasant. If I ask her to pop her phone to the side for a bit to join her family for dinner/movie or have a break from it, she blows up. I have tried to talk about phone discipline as about to start at uni etc but she goes mad. This is now affecting our relationship and we are clashing a lot. She is clearly very happy and in love with BF with lots of talk about their long term future plans and how wonderful he is. I am happy my DD has met someone who clearly cares for her however I am so very worried about her phone usage and how it dominates her life. The BF always has his phone in his hand and will look at it when we are in his company which is always for a short time. He has ADHD and mild learning differences and DD has explained he struggles to sleep or concentrate and needs to have music on or his phone to stay focussed etc and this explains his high phone usage. DD is doing a demanding course at uni which involves lots of reading and studying and according to other students and lecturers needs to be treated like a full time job. There is a high resit failure rate also so sounds very intense. I am also concerned she will miss out on making friends or taking part in uni life/activities because of her phone. The BF’s course is portfolio based and no exams and only a couple of lectures per week so he will not have to change his habit. I am so worried uni is not going to go well as she has no discipline or any intention of changing her ways. Anyone else been in the same situation and their young person has managed a demanding course and enjoy uni life whilst on their phone constantly? This is now causing me real concern so any advice would be much appreciated. Thank you x