Depressed

This week gas been hell, I've had a mental breakdown every day this week. But, today, my fiancé came over for a couple hours and my mom and step dad left, we say and watched tv for a while, keep in mind, I've just been a complete depressed mess. I have zero energy. So, after a couple hours, I asked "do you want to have sexy time before you leave" thinking it would help me feel a little better, and he said "sure" so we went up to my room and he tied my hands behind my back and he pushed me onto the bed and the sex was good, he flipped me over it was still good, but he turned me on my side and my shoulder was folded forward and it hurt and he kept trying to fuck and I said ow a couple times and then I said "get off" and kinda raised my voice because I was really in pain. It hurt a lot. And so, he untied me and said to pull my arm out, I was in tears and said that I can't. My arm wouldn't move from under me. So then, he got up and zipped his pants back up and said "get dressed" and left my room and went back downstairs and I just, broke down. I ruined it. He said it was ok and that it happens, but we've never had that happen before where we had a complication and didn't keep going. Never in the 2 years we've been doing it. I'm really upset. I don't know what to do. I'm really depressed right now. It's horrible. It keeps getting worse. I just, do t know. I don't even know what imexpecting from this post. I just needed to vent I guess