Boyfriend going to music festival


Boyfriend is going to music festival in Chicago with people he works on music with. I am completely stressed and worried because he’s going to be so far away. Staying at a RBNB with his single guy friends. I know it’s just going to be constant partying, drinking, and groupie festival females. I don’t feel comfortable with him going at all but I cannot stop him. Just thinking about it gives me tons of anxiety. I don’t know if I can handle him going and not knowing what’s happening. How would I ever even know if he did something with a female hence it being in Chicago and I’m in Boston. I don't know what to do. He hasn’t cheated on me but he did inbox a female a few months ago. Nothing came of it.