Is my friend a fake friend or am I just being sensitive?

I've had know this guy for over 10 years. But I feel like recently he is acting fake. I asked him why he doesn't come to my apartment to come see me no more and he says he is busy, but then I I look at his FB timeline and he is tagged in pictures with who I refer to as his "real friends." I call and text him on his phone, but he doesn't respond. The phone rings and goes to voicemail where it says his voicemail is not set up, so I know his phone works. He only communicates with me on Facebook messenger. He texted me he loved me on FB messenger and said he was coming to see me,but didn't come. When I asked what happened to him, he didn't even offer me an explanation he just texted me a big thumbs up. The past two years he has had birthday celebrations and I have called him in the middle of getting ready, but oddly he did not invite me. My mom recently died and he came to the funeral, paid for drinks for my family at the bar and for our bowling (something my family did to take my mind of things). He has a male friend and helper who works with him on various jobs and this person stays in the same apartment complex of me and outside of working, he hangs with him and I believe scoops this person up for jobs but can't come by to see me.