Heartbreak

Hey I’ll try not to make this as long… but in my relationship im known for nagging a lot and have a hard time communicating because I’d rather hold things in. I always have a very short temper and would get mad for everything. I know it was dumb, I wasn’t thinking about my actions at all. Couple of days ago we have broken up. I tell him I’m extremely sorry but he said he wants to focus on himself right now. I’m going through heartbreak right now because he knew I loved him so much and I nagged so much because I loved him just that much. I was showing him how much I lovee him in an unhealthy way. I wish I could go back and change things because I’ve learned my lesson and I’ll do anything to let him know how sorry I am. We still keep in touch, not as much; but he lets me know when he made it home , when he made it to work, when he’s about to go to sleep , etc. he said he still cares about me and loves me. But we aren’t together. He doesn’t respond to my msgs as fast as he use to, Im trying so hard to give him space and not bother him. I just miss him.. I miss us. I wish I did things differently , because not only did i hurt him ; but I’ve also hurt myself during the mist of it all. I haven’t seen him in a while. I wish I still have the chance to make things right and I hope he isn’t detaching from me as we are separated right now. Any words of encouragement to make me feel better ? I promise I don’t want to lose him. Just wish I was more mature about things when I had the opportunity.