What does this mean😰 I'm so upset

My SO and I are going through a rough time right now. This morning we had sex but I felt nothing. Literally nothing, usually I really enjoy it as soon as his pennies hits my vagina. Even if I don't enjoy it down there, in my head I do just because I'm in love with him. Well this morning there was nothing at all. Not down there or emotionally. I just layed there 😢 I'm really hurt right now because I know I'm in love with him but what's going on? Please help me. Someone please tell me this is normal for couples when their stressed out. Has this happened before to anyone. How long did it take to get back to normal. Did y'all break up??? Please I need to knowÂ