Sounds like you're really inexperienced and very nervous about tiny things.

1. There is no "we" or "us" after one week. Even if you hung out every day and had sex 100 times, you still barely know each other. You should slow down a bit. Takes 1-3 months of regularly hanging out to get to that point.
2. In terms of ensuring you are in a good place to date, ideally you should make sure you are busy/happy enough with yourself so that you are not getting hung up over one person. If you are waiting by the phone and getting disappointed that someone isn't texting you enough, this is a sign that might need to focus on yourself first.
3. Similar to 2, but you can also try dating multiple people at once, this helps with getting more experienced but also helps you to stop being needy/clingy.
4. Different people have different texting styles, ranging from "only text to organise things", to "text every minute of every day". Personally I am closer to the first one, and have broken up with people who text me too much. But there is no right way, you have to decide what you like and how much you are willing to compromise if somebody doesn't exactly match you (hint: nobody ever will match you 100%).
5. You have been waiting for him to text you, then he does text you, and then you were VERY rude to him. Why would you do that? If I were him I would not be contacting you again after that unless you apologised.
6. Despite everything I've just written, we can't know everything about what is going on. He might really like you but be super anxious, he might be extremely busy, he might not like you at all :). The only solution for you is: YOU ASK HIM OUT. Then you'll know eveeything you need to know.