So if a guy doesn't contact you or call you he doesn't care right?

So I'm leaving out of the country for a month and he is leaving a few weeks after me to some other place(sometime). He wanted to meet up and told me to contact him when I made up my mind about what time to go hang. I did and he never responded or contact me at all. So I just assumed that I am not worth anything to him at all. he knows that I'm leaving. In am really nice to him and often have gone out of my way for him because I cared and thought we could be friends. He flirts with me but I pretend not to notice because I am not ready for a relationship (due to abuse). I feel that getting involved with him would be wrong because I haven't healed from it yet. In the past he has tried to make me jealous but instead of being jealous I tried to be there for him because he was having a hard time and was not himself-his response he avoided me and gave me blunt answers when I talked to him. so yeah there is my story. If you can help me that would be great. Thank you so much for your time ^_^
So if a guy doesn't contact you or call you he doesn't care right?
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