My husband is ALWAYS on his phone

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My husband is addicted to his phone. When he is on his phone it's like I don't even exist. He doesn't hear anything I say and If I ask him a question he will wait until he is done with his video or whatever and ask me what I've said. I've told him over and over again that it drives me crazy that he completely ignores me when he is on his phone but it doesn't change. He will get a little better for a day or two but then it goes back to the way it was. We are currently living apart while our house is being rebuilt so we only see each other a couple days a week if that and he spends 75% of it watching YouTube videos! I look forward to spending that time with him and he doesn't understand why I get so upset that he is glued to his phone. Does anyone else have to deal with this nonsense??