Beware of gut feelings & mind reading & using it to block communication in relationships. It's much better to let things be expressed & learn to deal with reality of what IS actually said rather than dealing with assumptions.

Also if he really did have the feelings your gut was saying he had for you it's unlikely he would have moved away from you so easily.

Maybe he was feeling like you were wanting more than a friendship like you were thinking about him & was going to tell you that he didn't want to get involved as more than a friend since he was planning on going away to college.

Being married & having a child it would have been inappropriate for him to return your call..can you imagine what his wife could think? This girl from out of his past that she didn't even know wanting to get in touch with her husband & be best friends with him on top of it. First thought on wife's part would usually be the assumption that she's going to try & break up the marriage. Obviously unless he wanted to cause problems in his marriage he used wisdom in not returning your call.