Is it wrong to have a mans all about me..

My boyfriend and I are in long distance and it's really hard to sync our schedules and afford to visit each other. I ask him why he doesn't really call me anymore and he said it's not like he can be on his phone 24/7 and he's right but I just get super lonely watching all my friends get to be with their bfs and be on the phone with each other.. like I want that. We saw each other recently at a gathering and he didn't really stay with me he hung out with his friends instead.. is it right for me to be upset that he didn't spend more time with me? When he did come to me his friends would come with him and look at me like I'm taking away their time so I would tell him to go to them instead of me. Am I asking for too much to get some love from my long distance boyfriend ? Is it even worth mentioning it to him :/