relationship issue

Me and my boyfriend have been together for five months. The situation is a little bit confusing and difficult. Firstly he moved in which was after two months of being together, which i know sound ludicrous considering we wasnt together for long. But what happened was he left me a month later. He was gone for a day then was on the phone to me telling me that he was sorry, that he realises i am where home is and etc, words i wanted to hear. Anyway i took him back and then he moved back in which was on the 10th december. Then five days i awoke to a note that was left downstairs saying that he wasnt coming back because he didnt want to hurt me anymore and that he was too scared to tell me to my face because he didnt want to see me cry, he also told me not to contact him again. Well i did, i couldnt leave it at that, because truth is i love him. So when i finally got in touch with him, he was just as upset as i was, which was confusing. He then came to mine a few days before christmas, with a present and his apologies and begged for another chance, at the time i was so happy we were back together, after all i tried my hardest to get him back. Now what im confused with is he lives quite far away. He's laid down the law that he wont be moving back in with me and that we should take it really slow, which i agree is a smart decision. However i am getting confused over the whole situation. I dont know whether im just scared of him leaving again, its weird because when i am with him i am the happiest i have ever been, but as soon as its time for him to go home i feel like its over? and i dont understand why. He left for home today and im refraining from texting him, because i know its silly but i dont want to make him think "oh she is sooo obsessed". But he's not text me either, so just really dont know what to do. Any advice right now would be fantastic. Thanks for reading =)