Someone give me a little advice please =[?

So I moved across the country 2 months ago. I have a boyfriend of 7 months. we are very very close. But about a month ago, we got into a lot of fights and then i found out he cheated on me. I took him back and we got better and all lovey again. But now, for nearly 3 days he has like no time for me. He barely texts me anymore and today he hasnt said one word to me, i texted him and i called and left a voice mail. I dont know why he is ignoring me. I dont know what to do? should i keep pestering him? should i call his house and tell his mom to give the phone to him? Why is he even doing this?