Friend has bad social skills?

I have a buddy I met at the bar like 7 years ago and hes now part of my friend group. But over the last few years I theres something I feel off when interacting with him. Its made me question if i am socially confident but Its only him that I get this feeling. One time when I was drinking I kinda called him out and asked him and tried to figure out why I felt this way and my conclusion was he wasn't engaged in the conversation. Id talk to him and itd be complete silence and then skip topics or he'd sit on his phone. Am I weird thinking when you're "hanging out" 1 on 1 that you spend most of the time talking to eachother?