Scared and confused

I can't believe I'm posting this but oh well here goes. I dated this guy for 2 years and he broke up with me and we were apart for almost 2 years. The breakup devastated me. I couldn't move on or ever be completely happy and we never went a solid month without speaking or seeing each other. 3 weeks ago we started seeing each other again..every single day. He would text me before I even go home from being at his house and it just took me back. 2 weeks ago he asked me to be his girlfriend again. Everything was great, I couldn't believe it. But there are days, more often than not, that he is moody and distant and he seems like he had rather be anywhere else. I love him more than absolutely anything but I am so confused as to what to do. He just doesn't seem happy and I'm terrified of him leaving again. I'm going crazy. As much as I love him, I don't want him to be with me if he truly unhappy. I don't even know if any of this makes sense but I can't keep feeling like this and when I brought it up to him he said "I'm broken. I feel like I'm a bad person" and he wouldn't talk anymore. He has been through so much during our time apart and I need him to talk to me. I guess I just need some perspective and advice from complete strangers.

Hi I can see why you are worrying, he did admit to something being wrong. Sometimes with guys letting them know that you are there for them when they are ready to talk is enough or write it down sometimes can be easier. Tread carefully if he thinks you are eager to know he will clam up.