we got into it......bad...help?

So last night my boyfriend and I were getting ready to go to sleep because We get up really early for work. All day since he got off work he had been all over me. Touching me and kissing me, but then pulling away because we had things to get done. Before we went to bed I decided to try for it again because I was sooo horny. He got really mad at me and said we needed to just go to sleep because we both get up early. I got a little frustrated so I rolled over in bed and got on my phone so I could try and distract my (clearly wet) self. Now I'm a very sensitive person. So when someone does something that makes me feel like they're upset with me I get pretty emotional. I kept hearing him huff and puff on the other side of the bed, so I decided to say sorry for pushing the subject and upsetting him. Then he got REALLY mad at me for "putting words in his mouth" and it ended up with me balling and him screaming at me that he was never upset until I "told" him he was and if I wanted to leave it was up to me. I just don't know what to do. I cried so hard I ended up in the bathroom dry heaving afraid I was going to throw up. This is the worst fight we've ever gotten into. Normally we get along really well. Of course we have arguments and disagreements, but we're usually able to solve our problems before we get into a screaming/crying match. I'm sooo crazy in love with this man....but almost to a fault. Every time something happens I always feel guilty for even just apologizing because sometimes that upsets him more. I don't know what to do anymore. I want to talk to him but I don't know what to say. He thinks that everything started last night just because he wouldn't have sex with me, but I don't know how to tell him or have him understand that it's sooo much more than that. I am so insecure about so many things, and lately, when one thing bothers me, a whole slew of things start whirling up in mind about the past and all of my insecurities show up. I'm at my wits end with myself. I've gone to therapy to try and help the overemotional stuff but it doesn't work. I just seriously need help!