need advice!!!

lv
so i recently just moved for school and I thought I was talking to someone (from my area) but he's been super lagging in his texts... we went from texting & snapchatting everyday to basically nothing now! I don't know what happened to make him act this way so I'm really confused. we messed around (didn't have sex) a few times before I left so I'm not sure if it's that or the fact that I moved away now like he knew I was leaving. anyways we had a really good vibe together and I don't know what his problem is. smh