My boyfriend has become a nightclub promoter and it's bothering me?

So my boyfriend works during the day but has got another job as nightclub promoter. This means he managed a small team of street promoters, some of who are girls. He uses a work Facebook which he is on A LOT and messaging A LOT. I ask him "oh who's that" or "what did they say" and he's told me straight that it has nothing to do with me. He told me he wanted to keep me away from that job as I am his personal life and that is his work life and he doesn't want to mix the two. He has his own personal Facebook and this work one and I've noticed he's added some of the girls he manages on his personal Facebook. I reminded him that he said he wanted to keep work and personal seperate and he said he can add who he wants and I need to stop worrying. He said he wants to keep me away from this nightclub job so I don't end up worrying or fretting but this is making it worse. I'm not allowed to know anything, I can't see who he talks to, he's adding these people on his personal Facebook now. Before he got this job he took my photo off his phone wallpaper because it "wasn't professional". I'm worrying a lot and starting to think maybe there's something else going on I'm not allowed to know or is he just doing this to make sure I don't get paranoid and he's actually trying to help? I don't know how to feel or what to do.