Is my mother lonely?

She doesn’t let me have any social media, but I sneak it anyways. I usually go to bed around 10pm and go on my phone until around midnight (earlier, if I have a prior engagement). I do this because I feel I’m old enough to have Snapchat as I am 17 years old. Anyways, I have been enjoying the day with her (which is rather uncommon in our house). I feel bad going to bed now, but I want to talk to my friends. She has a boyfriend that lives with us, but there’s a number of reasons they don’t spend time together. Therefore, I feel like I should be the one sitting up with her watching Netflix. I don’t want her to feel lonely/pathetic/unloved, sitting there on the couch watching Netflix and drinking. I always question whether I should leave or not; I feel like I’m ditching her! Help??