HELP: I always initiate conversation...What does it mean?

wild_rose
There's a particular guy that I like. We used to see each other at school but now we rarely meet. We exchanged our numbers, and emails.. But I'm always the one initiating contact. However, when I talk to him, he doesn't seem to close down the conversation but rather trying to keep the conversation going ( a conversation will be about 20 - 30 mins ).

He never texts me first and if I don't text him, he won't text me.

Do you think he is avoiding me or maybe he is annoyed?

What should I do in order not to be seen as annoying or desperate?
HELP: I always initiate conversation...What does it mean?
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