My confusing Cancer man..

Well, he is cancer sun and moon and i am virgo sun with Taurus moon. We met online in october and from the second we have first started talking things were incredible. i have never had so much in common with a guy before everything that we would talk about we were on the same page. texting back and forth pretty much every free minute of the day and talking on the phone at least once a week. i had lived almost 12 hours away but have recently moved to us only being an hour or so apart so we could have a shot. Back in december when we had actually met and hung out i could not believe how perfect he was.. i have never met a guy so charming and handsome everything was perfect until about a week ago. He works away for about four weeks at a time and after us hanging out in December i told him i wasn't going anywhere and i was willing to try to put up with the distance and see if we could make it work but now all of a sudden he has gotten extremely cold to me.. he was supposed to come up on valentines day but was having car problems and couldn't come. Texts have almost stopped coming all together. I asked him if he had still wanted to give this a chance and he said yes and that he likes me. i don't know if he is just telling me what i want to hear. I have been giving him space and it's so hard because i miss him!! this is extremely unlike me for a virgo i can usually go from being interested to forgetting about someone with a flick of a switch but not this cancer man i don't know what it is about him but i know i can't wait for him to come out of his shell. Is this a common cancer man thing? should i just really move on or keep waiting to see if he will come out of his shell?