Boyfriend is mad I went to a concert with a male friend

I think my boyfriend is mad at me because I went out to a concert last night. ??? My friend had bought them for him and his girlfriend, but they broke up, so I went instead. My boyfriend barely texted me all night even when I sent 😘 and 💖 , and when I got home, he didn't say a word to me and went straight to sleep. 😒 Be mad if you want to, I didn't do anything wrong. I didn't spend any money, I didn't drink or so drugs, I just enjoyed music. Boy bye ✌🏼️🙄