Guy problem: i feel really confused?

Ive been seeing a guy on and off now since last april! but he constantly confuses me. last year we were really close its scary how much alike we are he was amazing, he went home to Ecuador for 2 months to see family and we started to grow apart. I guessed he just wasn't interested anymore there was nothing I could do I wasn't official with him. So I decided to try and get over him he acted a little different and I kept talking to him to the minimum as i was trying to get other things. We said hello once in a while and that was it really after a while he started questioning why I wasnt really speaking to him and he started getting flirty. Most of this was done over msn as that was where we ended up only ever speaking, I never really gave him answers he started asking me when I would see him and I just shook it off untill christmas he was just a little tipsy and told me things he'd never had the courage to tell me he said he was too scared. (fyi: our relationship back before the summer was purely on conversation and enjoying each others company it was in no way ual just to note) This gave me the oppertunity to spill out how i felt and we sorted things out he told me that some time in the near future maybe we could be together after getting to know each other better again. He then again asked me to see him and i said yes untill before the day came and he told me he had things to do something about going to the mechanics because his fathers car had broken down and we're back to square one his feelings seem to of switched off again. I've let myself get sucked back into being infatuated with him again i feel so low why is he doing this i dont understand its like when ever i switch off he switches on when i switch on he switches off do you get what i mean? im so confused i dont know what to do any advice or does anyone know what his game is? Just to let you know hes a sincere man he isnt like immature although thats how it comes across slightly he wouldnt hurt a fly I dont know if he means to be the way he is.