I don't know what it is that makes people think this. Seriously, sometimes we guys don't feel like starting a conversation because we're not always into talking. Sometimes we are. It really just depends.
And something as little as texting, come on, texting, for goodness sake, shouldn't dictate whether a guy likes you or not. The fact that he talks to you should be good enough, you know?
Since I see texting as the lowest form of communication, other than telegrams and letters, I don't see it as a big deal that he doesn't text you first. Maybe he's just busy and doesn't regularly think: Oh dear, maybe I should text this girl or she might think I'm a jerk.
Guys don't think like that.
So aside from my rant, which has meaning, I think that you should only take offense if he doesn't start the conversation first, if the conversation is IN PERSON, not through text. Like if you clearly make eye contact and he doesn't at least say hello or some type of small-talk, then I would say he doesn't like you as any more than a friend.
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