Torn between my head and my heart

[C-sass]

Ok this is a pretty long, involved explanation to a question but I am completley stuck and need to explain the whole situation. I was dating a guy just over a year ago, and we broke up completley out of the blue just one day he kinda disapeared. I heard from him after a few days saying that he had some family stuff to deal with and he just couldnt be in a relationship, which was true, his sister was having marriage and drug problems so I know it wasnt bulls*** though it was a stupid reason for a break up. So then we didnt speak for several months, but I couldnt get him off my mind or out of my heart, I dated others on and off but no one made me feel like he did.

 

So after about 6 months of not speaking he emailed me, to see how I was doing and to apologize again because the guilt from what he did to me was still bothering him. When i got this email all my emotions were stirred again. So we started hanging out again, just as friends, but then I let him know I wanted to get back together, which was a bad mistake on my part because I think he agreed just because he figured why not. So after only a week of non stop fighting, not to metion the fact that I was moving out of the country in a few months, we just called it quits and cut ties again. So after 5 months of not speaking I got an email from him just asking how I was doing, and that when I got back in the country we should get together.

 

Well he didnt know I was already back in the country so I emailed him back saying I was good, my trip was awesome and my number in case he wanted to get together, thinking he wouldnt have the balls to call me. Well he did and we got together and we had the same sparks and chemistry as when we first started dating. So I saw him again and this time at his place, and it was like we were a couple again, goofing around and getting along. And then he kissed me. And I kissed him back because I still have really strong feelings for him. Now he wants to get back together but its really really hard for me, and I know its dumb for me to go through this again when he already had his chance. But it is what I want even if its bad for me. I don't know if I should or not, but it is a different situation now, I'm not leaving the coutry hes got his life straightened out a lot, and he keeps stressing to me what a huge mistake he made, and how I'm whats missing in his life, and it could be all a bunch of crap, but why would he be so persistant if he didnt really want me back. I know I should just walk away, but its not that easy. Am I making a huge mistake if I take him back?