Sex with my boyfriend

My boyfriend and I hadn't had sex in like a month until yesterday we finally did. We didn't have sex bc we were busy or just didn't have a place to do it in since we still live with our parents. Throughout the month we were both really horny and would FaceTime to get ourselves off. When we had sex yesterday I just didn't feel as excited or horny as I had been the past month. I felt dry and not wet enough and when my boyfriend penetrated me I just felt sore and didn't enjoy it. Why was I so horny the last month but when we got to have sex I wasn't really aroused?😔😒