<p>From my experiences while young, I am guessing that he found another girl whom he liked more than you, and he was too shy or insensitive to let you know that he had moved on. Since he lacked guts or is very insensitive, you are better off without him. </p>
<p>Not all guys act like he did. Decent people will break off a relationship with courtesy and kindness. The break-up will still hurt, but at least the person who was dumped will know that the relationship is over.</p>