I'm scared he is going to think I am obsessed with him because I've already texted him first the last couple of days. He's never texted me first before. But when we texts he says so much. So I know he likes talking to me.. Should I wait or jut text him?

As a girl, you should start the conversation, since he probably won't take the initiative.
If he's annoyed with it, he'll ignore it or ask you to stop. If he's busy, he'll say cheers. If he doesn't respond, be patient - don't send him 600 texts.
If a guy regularly starts the conversation, he probably just wants to bang you.
If he doesn't have the balls to text or call you himself...lol...you don't want him tapping that ass. There's no telling what else he isn't willing to do.
just text him first. it's more likely he'll be glad u texted if not he won't mind anyway. bottomline, guy won't get annoyed of text from girl unless he dislikes her..
It's always important that you seem to have your own interests too and aren't going to be too clingy.
Good luck, I hope it works out for you both :o)