Why hasn't he answered my calls?

I have been talking to this guy since October and because of distance(I am overseas working) we have decided to keep it platonic.WELL a few days ago he came out and said how he really felt about me,which I knew he did before.(We both have established that's how we really feel about each other.)Which was that he really wanted me home and in his arms and to be with me and all this other stuff.Well after that conversation he has not answered any of my calls for the past 3 days.I have to call him because he can't call me over here.What to think?Or feel?I left him a couple of voice-mails wondering why he fell off the face of the planet. Why would he do that?I am so confused,and have feelings for him too.Why would he say those things and then not talk to me?Am I overreacting?We talk everyday usually so it's a bit unusual.Serious inquiries please.