Maybe someone can help me out

Me and my boyfriend are having a tough time right now. It seems like all he wants to do is be on his cell phone. I completely understand being on it sometimes, you do what you gotta do, but hes on it constantly. It's to the point he wont even sit down and watch a movie with me, or just cuddle on the sofa. All he does is complain about how he dosent wanna cuddle with me, or do this with me, he wants to be on his phone, and that he will come spend time with me when hes ready to sleep. It kinda makes me sad, and in some parts lonely. It feels like something is just missing. What do you guys think?